Home / 27,630.37-38,129.89-15,055.12

Finding the Fourth Proportional to 27,630.37, 38,129.89 and 15,055.12

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Solution

The fourth proportional to 27,630.37, 38,129.89 and 15,055.12 is: 20,776.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,630.37 : 38,129.89 = 15,055.12 : x
  2. Step 2: Convert to fraction form
    27,630.37/38,129.89 = 15,055.12/x
  3. Step 3: Cross multiply
    27,630.37x = 38,129.89 × 15,055.12
  4. Step 4: Simplify right side
    27,630.37x = 574,050,069.54
  5. Step 5: Solve for x
    x = 574,050,069.54/27,630.37
  6. Step 6: Final answer
    x = 20,776.05

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Double scale
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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.