Home / 29,298.43-40,431.86-15,869.71

Finding the Fourth Proportional to 29,298.43, 40,431.86 and 15,869.71

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Solution

The fourth proportional to 29,298.43, 40,431.86 and 15,869.71 is: 21,900.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,298.43 : 40,431.86 = 15,869.71 : x
  2. Step 2: Convert to fraction form
    29,298.43/40,431.86 = 15,869.71/x
  3. Step 3: Cross multiply
    29,298.43x = 40,431.86 × 15,869.71
  4. Step 4: Simplify right side
    29,298.43x = 641,641,892.96
  5. Step 5: Solve for x
    x = 641,641,892.96/29,298.43
  6. Step 6: Final answer
    x = 21,900.21

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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.