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Finding the Fourth Proportional to 43,347, 65,039.28 and 15,287.10

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Solution

The fourth proportional to 43,347, 65,039.28 and 15,287.10 is: 22,937.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,347 : 65,039.28 = 15,287.10 : x
  2. Step 2: Convert to fraction form
    43,347/65,039.28 = 15,287.10/x
  3. Step 3: Cross multiply
    43,347x = 65,039.28 × 15,287.10
  4. Step 4: Simplify right side
    43,347x = 994,261,977.29
  5. Step 5: Solve for x
    x = 994,261,977.29/43,347
  6. Step 6: Final answer
    x = 22,937.27

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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.