Home / 28,229.42-38,956.11-15,654.26

Finding the Fourth Proportional to 28,229.42, 38,956.11 and 15,654.26

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Solution

The fourth proportional to 28,229.42, 38,956.11 and 15,654.26 is: 21,602.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.42 : 38,956.11 = 15,654.26 : x
  2. Step 2: Convert to fraction form
    28,229.42/38,956.11 = 15,654.26/x
  3. Step 3: Cross multiply
    28,229.42x = 38,956.11 × 15,654.26
  4. Step 4: Simplify right side
    28,229.42x = 609,829,074.53
  5. Step 5: Solve for x
    x = 609,829,074.53/28,229.42
  6. Step 6: Final answer
    x = 21,602.61

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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.