Home / 30,079.76-45,095.28-12,562.68

Finding the Fourth Proportional to 30,079.76, 45,095.28 and 12,562.68

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Solution

The fourth proportional to 30,079.76, 45,095.28 and 12,562.68 is: 18,833.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,079.76 : 45,095.28 = 12,562.68 : x
  2. Step 2: Convert to fraction form
    30,079.76/45,095.28 = 12,562.68/x
  3. Step 3: Cross multiply
    30,079.76x = 45,095.28 × 12,562.68
  4. Step 4: Simplify right side
    30,079.76x = 566,517,572.15
  5. Step 5: Solve for x
    x = 566,517,572.15/30,079.76
  6. Step 6: Final answer
    x = 18,833.85

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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.