Home / 22,127.42-30,565.68-20,552.78

Finding the Fourth Proportional to 22,127.42, 30,565.68 and 20,552.78

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Solution

The fourth proportional to 22,127.42, 30,565.68 and 20,552.78 is: 28,390.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,127.42 : 30,565.68 = 20,552.78 : x
  2. Step 2: Convert to fraction form
    22,127.42/30,565.68 = 20,552.78/x
  3. Step 3: Cross multiply
    22,127.42x = 30,565.68 × 20,552.78
  4. Step 4: Simplify right side
    22,127.42x = 628,209,696.59
  5. Step 5: Solve for x
    x = 628,209,696.59/22,127.42
  6. Step 6: Final answer
    x = 28,390.55

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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.