Home / 48,488.85-72,733.38-13,428.63

Finding the Fourth Proportional to 48,488.85, 72,733.38 and 13,428.63

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Solution

The fourth proportional to 48,488.85, 72,733.38 and 13,428.63 is: 20,142.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,488.85 : 72,733.38 = 13,428.63 : x
  2. Step 2: Convert to fraction form
    48,488.85/72,733.38 = 13,428.63/x
  3. Step 3: Cross multiply
    48,488.85x = 72,733.38 × 13,428.63
  4. Step 4: Simplify right side
    48,488.85x = 976,709,648.67
  5. Step 5: Solve for x
    x = 976,709,648.67/48,488.85
  6. Step 6: Final answer
    x = 20,142.97

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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.