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Finding the Fourth Proportional to 40,590.80, 60,892.26 and 14,290.90

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Solution

The fourth proportional to 40,590.80, 60,892.26 and 14,290.90 is: 21,438.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,590.80 : 60,892.26 = 14,290.90 : x
  2. Step 2: Convert to fraction form
    40,590.80/60,892.26 = 14,290.90/x
  3. Step 3: Cross multiply
    40,590.80x = 60,892.26 × 14,290.90
  4. Step 4: Simplify right side
    40,590.80x = 870,205,198.43
  5. Step 5: Solve for x
    x = 870,205,198.43/40,590.80
  6. Step 6: Final answer
    x = 21,438.48

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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.