Home / 22,210.24-30,649.60-12,138.70

Finding the Fourth Proportional to 22,210.24, 30,649.60 and 12,138.70

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Solution

The fourth proportional to 22,210.24, 30,649.60 and 12,138.70 is: 16,751.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,210.24 : 30,649.60 = 12,138.70 : x
  2. Step 2: Convert to fraction form
    22,210.24/30,649.60 = 12,138.70/x
  3. Step 3: Cross multiply
    22,210.24x = 30,649.60 × 12,138.70
  4. Step 4: Simplify right side
    22,210.24x = 372,046,299.52
  5. Step 5: Solve for x
    x = 372,046,299.52/22,210.24
  6. Step 6: Final answer
    x = 16,751.12

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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.