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Finding the Fourth Proportional to 40,653, 60,979.32 and 14,351.40

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Solution

The fourth proportional to 40,653, 60,979.32 and 14,351.40 is: 21,527.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,653 : 60,979.32 = 14,351.40 : x
  2. Step 2: Convert to fraction form
    40,653/60,979.32 = 14,351.40/x
  3. Step 3: Cross multiply
    40,653x = 60,979.32 × 14,351.40
  4. Step 4: Simplify right side
    40,653x = 875,138,613.05
  5. Step 5: Solve for x
    x = 875,138,613.05/40,653
  6. Step 6: Final answer
    x = 21,527.04

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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.