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Finding the Fourth Proportional to 28,251.20, 42,328.20 and 23,877.20

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Solution

The fourth proportional to 28,251.20, 42,328.20 and 23,877.20 is: 35,774.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,251.20 : 42,328.20 = 23,877.20 : x
  2. Step 2: Convert to fraction form
    28,251.20/42,328.20 = 23,877.20/x
  3. Step 3: Cross multiply
    28,251.20x = 42,328.20 × 23,877.20
  4. Step 4: Simplify right side
    28,251.20x = 1,010,678,897.04
  5. Step 5: Solve for x
    x = 1,010,678,897.04/28,251.20
  6. Step 6: Final answer
    x = 35,774.72

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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.