Home / 37,286.12-51,455.53-20,518.76

Finding the Fourth Proportional to 37,286.12, 51,455.53 and 20,518.76

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Solution

The fourth proportional to 37,286.12, 51,455.53 and 20,518.76 is: 28,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,286.12 : 51,455.53 = 20,518.76 : x
  2. Step 2: Convert to fraction form
    37,286.12/51,455.53 = 20,518.76/x
  3. Step 3: Cross multiply
    37,286.12x = 51,455.53 × 20,518.76
  4. Step 4: Simplify right side
    37,286.12x = 1,055,803,439.51
  5. Step 5: Solve for x
    x = 1,055,803,439.51/37,286.12
  6. Step 6: Final answer
    x = 28,316.26

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Half scale
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Double scale
Find fourth proportional to 37,287.12, 51,456.91 and 20,519.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.