Home / 48,013.29-72,029.21-18,428.82

Finding the Fourth Proportional to 48,013.29, 72,029.21 and 18,428.82

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Solution

The fourth proportional to 48,013.29, 72,029.21 and 18,428.82 is: 27,646.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,013.29 : 72,029.21 = 18,428.82 : x
  2. Step 2: Convert to fraction form
    48,013.29/72,029.21 = 18,428.82/x
  3. Step 3: Cross multiply
    48,013.29x = 72,029.21 × 18,428.82
  4. Step 4: Simplify right side
    48,013.29x = 1,327,412,983.58
  5. Step 5: Solve for x
    x = 1,327,412,983.58/48,013.29
  6. Step 6: Final answer
    x = 27,646.78

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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.