Home / 22,272.86-30,739.92-12,712.70

Finding the Fourth Proportional to 22,272.86, 30,739.92 and 12,712.70

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Solution

The fourth proportional to 22,272.86, 30,739.92 and 12,712.70 is: 17,545.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,272.86 : 30,739.92 = 12,712.70 : x
  2. Step 2: Convert to fraction form
    22,272.86/30,739.92 = 12,712.70/x
  3. Step 3: Cross multiply
    22,272.86x = 30,739.92 × 12,712.70
  4. Step 4: Simplify right side
    22,272.86x = 390,787,380.98
  5. Step 5: Solve for x
    x = 390,787,380.98/22,272.86
  6. Step 6: Final answer
    x = 17,545.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.