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Finding the Fourth Proportional to 28,095.97, 42,143.65 and 16,242.20

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Solution

The fourth proportional to 28,095.97, 42,143.65 and 16,242.20 is: 24,363.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,095.97 : 42,143.65 = 16,242.20 : x
  2. Step 2: Convert to fraction form
    28,095.97/42,143.65 = 16,242.20/x
  3. Step 3: Cross multiply
    28,095.97x = 42,143.65 × 16,242.20
  4. Step 4: Simplify right side
    28,095.97x = 684,505,592.03
  5. Step 5: Solve for x
    x = 684,505,592.03/28,095.97
  6. Step 6: Final answer
    x = 24,363.12

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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.