Home / 42,740.55-58,990.11-28,179.17

Finding the Fourth Proportional to 42,740.55, 58,990.11 and 28,179.17

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Solution

The fourth proportional to 42,740.55, 58,990.11 and 28,179.17 is: 38,892.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,740.55 : 58,990.11 = 28,179.17 : x
  2. Step 2: Convert to fraction form
    42,740.55/58,990.11 = 28,179.17/x
  3. Step 3: Cross multiply
    42,740.55x = 58,990.11 × 28,179.17
  4. Step 4: Simplify right side
    42,740.55x = 1,662,292,204.89
  5. Step 5: Solve for x
    x = 1,662,292,204.89/42,740.55
  6. Step 6: Final answer
    x = 38,892.62

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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.