Home / 22,101.87-30,520.04-15,045.15

Finding the Fourth Proportional to 22,101.87, 30,520.04 and 15,045.15

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Solution

The fourth proportional to 22,101.87, 30,520.04 and 15,045.15 is: 20,775.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,101.87 : 30,520.04 = 15,045.15 : x
  2. Step 2: Convert to fraction form
    22,101.87/30,520.04 = 15,045.15/x
  3. Step 3: Cross multiply
    22,101.87x = 30,520.04 × 15,045.15
  4. Step 4: Simplify right side
    22,101.87x = 459,178,504.58
  5. Step 5: Solve for x
    x = 459,178,504.58/22,101.87
  6. Step 6: Final answer
    x = 20,775.55

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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.