Home / 42,842.27-64,304.91-20,671.22

Finding the Fourth Proportional to 42,842.27, 64,304.91 and 20,671.22

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Solution

The fourth proportional to 42,842.27, 64,304.91 and 20,671.22 is: 31,026.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,842.27 : 64,304.91 = 20,671.22 : x
  2. Step 2: Convert to fraction form
    42,842.27/64,304.91 = 20,671.22/x
  3. Step 3: Cross multiply
    42,842.27x = 64,304.91 × 20,671.22
  4. Step 4: Simplify right side
    42,842.27x = 1,329,260,620.17
  5. Step 5: Solve for x
    x = 1,329,260,620.17/42,842.27
  6. Step 6: Final answer
    x = 31,026.85

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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.