Home / 37,331.68-51,515.04-21,415.72

Finding the Fourth Proportional to 37,331.68, 51,515.04 and 21,415.72

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Solution

The fourth proportional to 37,331.68, 51,515.04 and 21,415.72 is: 29,552.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,331.68 : 51,515.04 = 21,415.72 : x
  2. Step 2: Convert to fraction form
    37,331.68/51,515.04 = 21,415.72/x
  3. Step 3: Cross multiply
    37,331.68x = 51,515.04 × 21,415.72
  4. Step 4: Simplify right side
    37,331.68x = 1,103,231,672.43
  5. Step 5: Solve for x
    x = 1,103,231,672.43/37,331.68
  6. Step 6: Final answer
    x = 29,552.16

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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.