Home / 39,171.72-58,699.24-21,646.56

Finding the Fourth Proportional to 39,171.72, 58,699.24 and 21,646.56

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Solution

The fourth proportional to 39,171.72, 58,699.24 and 21,646.56 is: 32,437.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,171.72 : 58,699.24 = 21,646.56 : x
  2. Step 2: Convert to fraction form
    39,171.72/58,699.24 = 21,646.56/x
  3. Step 3: Cross multiply
    39,171.72x = 58,699.24 × 21,646.56
  4. Step 4: Simplify right side
    39,171.72x = 1,270,636,620.61
  5. Step 5: Solve for x
    x = 1,270,636,620.61/39,171.72
  6. Step 6: Final answer
    x = 32,437.60

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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.