Home / 20,424.96-30,488.40-17,521.92

Finding the Fourth Proportional to 20,424.96, 30,488.40 and 17,521.92

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Solution

The fourth proportional to 20,424.96, 30,488.40 and 17,521.92 is: 26,155.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,424.96 : 30,488.40 = 17,521.92 : x
  2. Step 2: Convert to fraction form
    20,424.96/30,488.40 = 17,521.92/x
  3. Step 3: Cross multiply
    20,424.96x = 30,488.40 × 17,521.92
  4. Step 4: Simplify right side
    20,424.96x = 534,215,305.73
  5. Step 5: Solve for x
    x = 534,215,305.73/20,424.96
  6. Step 6: Final answer
    x = 26,155.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.