Home / 38,122.59-52,611.28-21,126.48

Finding the Fourth Proportional to 38,122.59, 52,611.28 and 21,126.48

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Solution

The fourth proportional to 38,122.59, 52,611.28 and 21,126.48 is: 29,155.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,122.59 : 52,611.28 = 21,126.48 : x
  2. Step 2: Convert to fraction form
    38,122.59/52,611.28 = 21,126.48/x
  3. Step 3: Cross multiply
    38,122.59x = 52,611.28 × 21,126.48
  4. Step 4: Simplify right side
    38,122.59x = 1,111,491,154.69
  5. Step 5: Solve for x
    x = 1,111,491,154.69/38,122.59
  6. Step 6: Final answer
    x = 29,155.71

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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.