Home / 28,345.31-42,534.39-14,306.43

Finding the Fourth Proportional to 28,345.31, 42,534.39 and 14,306.43

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Solution

The fourth proportional to 28,345.31, 42,534.39 and 14,306.43 is: 21,467.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,345.31 : 42,534.39 = 14,306.43 : x
  2. Step 2: Convert to fraction form
    28,345.31/42,534.39 = 14,306.43/x
  3. Step 3: Cross multiply
    28,345.31x = 42,534.39 × 14,306.43
  4. Step 4: Simplify right side
    28,345.31x = 608,515,273.13
  5. Step 5: Solve for x
    x = 608,515,273.13/28,345.31
  6. Step 6: Final answer
    x = 21,467.94

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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.