Home / 37,406.13-51,621.54-20,640.21

Finding the Fourth Proportional to 37,406.13, 51,621.54 and 20,640.21

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Solution

The fourth proportional to 37,406.13, 51,621.54 and 20,640.21 is: 28,484.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,406.13 : 51,621.54 = 20,640.21 : x
  2. Step 2: Convert to fraction form
    37,406.13/51,621.54 = 20,640.21/x
  3. Step 3: Cross multiply
    37,406.13x = 51,621.54 × 20,640.21
  4. Step 4: Simplify right side
    37,406.13x = 1,065,479,064.81
  5. Step 5: Solve for x
    x = 1,065,479,064.81/37,406.13
  6. Step 6: Final answer
    x = 28,484.08

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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.