Home / 28,229.46-38,956.74-15,654.18

Finding the Fourth Proportional to 28,229.46, 38,956.74 and 15,654.18

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Solution

The fourth proportional to 28,229.46, 38,956.74 and 15,654.18 is: 21,602.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,229.46 : 38,956.74 = 15,654.18 : x
  2. Step 2: Convert to fraction form
    28,229.46/38,956.74 = 15,654.18/x
  3. Step 3: Cross multiply
    28,229.46x = 38,956.74 × 15,654.18
  4. Step 4: Simplify right side
    28,229.46x = 609,835,820.17
  5. Step 5: Solve for x
    x = 609,835,820.17/28,229.46
  6. Step 6: Final answer
    x = 21,602.82

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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.