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Finding the Fourth Proportional to 42,948, 59,294.16 and 28,069.92

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Solution

The fourth proportional to 42,948, 59,294.16 and 28,069.92 is: 38,753.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,948 : 59,294.16 = 28,069.92 : x
  2. Step 2: Convert to fraction form
    42,948/59,294.16 = 28,069.92/x
  3. Step 3: Cross multiply
    42,948x = 59,294.16 × 28,069.92
  4. Step 4: Simplify right side
    42,948x = 1,664,382,327.67
  5. Step 5: Solve for x
    x = 1,664,382,327.67/42,948
  6. Step 6: Final answer
    x = 38,753.43

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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.