Home / 28,531.76-39,373.88-15,956.52

Finding the Fourth Proportional to 28,531.76, 39,373.88 and 15,956.52

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Solution

The fourth proportional to 28,531.76, 39,373.88 and 15,956.52 is: 22,020.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.76 : 39,373.88 = 15,956.52 : x
  2. Step 2: Convert to fraction form
    28,531.76/39,373.88 = 15,956.52/x
  3. Step 3: Cross multiply
    28,531.76x = 39,373.88 × 15,956.52
  4. Step 4: Simplify right side
    28,531.76x = 628,270,103.70
  5. Step 5: Solve for x
    x = 628,270,103.70/28,531.76
  6. Step 6: Final answer
    x = 22,020.03

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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.