Home / 22,139.28-30,552.77-12,578.85

Finding the Fourth Proportional to 22,139.28, 30,552.77 and 12,578.85

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Solution

The fourth proportional to 22,139.28, 30,552.77 and 12,578.85 is: 17,359.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,139.28 : 30,552.77 = 12,578.85 : x
  2. Step 2: Convert to fraction form
    22,139.28/30,552.77 = 12,578.85/x
  3. Step 3: Cross multiply
    22,139.28x = 30,552.77 × 12,578.85
  4. Step 4: Simplify right side
    22,139.28x = 384,318,742.36
  5. Step 5: Solve for x
    x = 384,318,742.36/22,139.28
  6. Step 6: Final answer
    x = 17,359.13

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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.