Home / 29,294.11-40,425.64-15,865.32

Finding the Fourth Proportional to 29,294.11, 40,425.64 and 15,865.32

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Solution

The fourth proportional to 29,294.11, 40,425.64 and 15,865.32 is: 21,894.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,294.11 : 40,425.64 = 15,865.32 : x
  2. Step 2: Convert to fraction form
    29,294.11/40,425.64 = 15,865.32/x
  3. Step 3: Cross multiply
    29,294.11x = 40,425.64 × 15,865.32
  4. Step 4: Simplify right side
    29,294.11x = 641,365,714.80
  5. Step 5: Solve for x
    x = 641,365,714.80/29,294.11
  6. Step 6: Final answer
    x = 21,894.02

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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.