Home / 20,322.74-28,049.76-12,367.53

Finding the Fourth Proportional to 20,322.74, 28,049.76 and 12,367.53

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Solution

The fourth proportional to 20,322.74, 28,049.76 and 12,367.53 is: 17,069.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,322.74 : 28,049.76 = 12,367.53 : x
  2. Step 2: Convert to fraction form
    20,322.74/28,049.76 = 12,367.53/x
  3. Step 3: Cross multiply
    20,322.74x = 28,049.76 × 12,367.53
  4. Step 4: Simplify right side
    20,322.74x = 346,906,248.29
  5. Step 5: Solve for x
    x = 346,906,248.29/20,322.74
  6. Step 6: Final answer
    x = 17,069.85

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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.