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Finding the Fourth Proportional to 28,596.97, 42,901.19 and 9,877.70

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Solution

The fourth proportional to 28,596.97, 42,901.19 and 9,877.70 is: 14,818.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,596.97 : 42,901.19 = 9,877.70 : x
  2. Step 2: Convert to fraction form
    28,596.97/42,901.19 = 9,877.70/x
  3. Step 3: Cross multiply
    28,596.97x = 42,901.19 × 9,877.70
  4. Step 4: Simplify right side
    28,596.97x = 423,765,084.46
  5. Step 5: Solve for x
    x = 423,765,084.46/28,596.97
  6. Step 6: Final answer
    x = 14,818.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.