Home / 28,531.50-39,373.61-15,956.25

Finding the Fourth Proportional to 28,531.50, 39,373.61 and 15,956.25

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Solution

The fourth proportional to 28,531.50, 39,373.61 and 15,956.25 is: 22,019.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,531.50 : 39,373.61 = 15,956.25 : x
  2. Step 2: Convert to fraction form
    28,531.50/39,373.61 = 15,956.25/x
  3. Step 3: Cross multiply
    28,531.50x = 39,373.61 × 15,956.25
  4. Step 4: Simplify right side
    28,531.50x = 628,255,084.78
  5. Step 5: Solve for x
    x = 628,255,084.78/28,531.50
  6. Step 6: Final answer
    x = 22,019.70

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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.