Home / 22,210.27-30,649.29-12,138.83

Finding the Fourth Proportional to 22,210.27, 30,649.29 and 12,138.83

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Solution

The fourth proportional to 22,210.27, 30,649.29 and 12,138.83 is: 16,751.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.27 : 30,649.29 = 12,138.83 : x
  2. Step 2: Convert to fraction form
    22,210.27/30,649.29 = 12,138.83/x
  3. Step 3: Cross multiply
    22,210.27x = 30,649.29 × 12,138.83
  4. Step 4: Simplify right side
    22,210.27x = 372,046,520.93
  5. Step 5: Solve for x
    x = 372,046,520.93/22,210.27
  6. Step 6: Final answer
    x = 16,751.10

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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.