Home / 22,257.86-30,719.22-12,697.70

Finding the Fourth Proportional to 22,257.86, 30,719.22 and 12,697.70

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Solution

The fourth proportional to 22,257.86, 30,719.22 and 12,697.70 is: 17,524.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,257.86 : 30,719.22 = 12,697.70 : x
  2. Step 2: Convert to fraction form
    22,257.86/30,719.22 = 12,697.70/x
  3. Step 3: Cross multiply
    22,257.86x = 30,719.22 × 12,697.70
  4. Step 4: Simplify right side
    22,257.86x = 390,063,439.79
  5. Step 5: Solve for x
    x = 390,063,439.79/22,257.86
  6. Step 6: Final answer
    x = 17,524.75

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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.