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Finding the Fourth Proportional to 43,937, 65,891.87 and 15,853.40

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Solution

The fourth proportional to 43,937, 65,891.87 and 15,853.40 is: 23,775.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,937 : 65,891.87 = 15,853.40 : x
  2. Step 2: Convert to fraction form
    43,937/65,891.87 = 15,853.40/x
  3. Step 3: Cross multiply
    43,937x = 65,891.87 × 15,853.40
  4. Step 4: Simplify right side
    43,937x = 1,044,610,171.86
  5. Step 5: Solve for x
    x = 1,044,610,171.86/43,937
  6. Step 6: Final answer
    x = 23,775.18

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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.