Home / 22,121.53-30,538.65-15,084.85

Finding the Fourth Proportional to 22,121.53, 30,538.65 and 15,084.85

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Solution

The fourth proportional to 22,121.53, 30,538.65 and 15,084.85 is: 20,824.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.53 : 30,538.65 = 15,084.85 : x
  2. Step 2: Convert to fraction form
    22,121.53/30,538.65 = 15,084.85/x
  3. Step 3: Cross multiply
    22,121.53x = 30,538.65 × 15,084.85
  4. Step 4: Simplify right side
    22,121.53x = 460,670,954.45
  5. Step 5: Solve for x
    x = 460,670,954.45/22,121.53
  6. Step 6: Final answer
    x = 20,824.55

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Double scale
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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.