Home / 29,301.20-40,435.77-15,872.42

Finding the Fourth Proportional to 29,301.20, 40,435.77 and 15,872.42

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Solution

The fourth proportional to 29,301.20, 40,435.77 and 15,872.42 is: 21,904.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,301.20 : 40,435.77 = 15,872.42 : x
  2. Step 2: Convert to fraction form
    29,301.20/40,435.77 = 15,872.42/x
  3. Step 3: Cross multiply
    29,301.20x = 40,435.77 × 15,872.42
  4. Step 4: Simplify right side
    29,301.20x = 641,813,524.46
  5. Step 5: Solve for x
    x = 641,813,524.46/29,301.20
  6. Step 6: Final answer
    x = 21,904.00

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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.