Home / 37,139.75-51,253.13-20,372.75

Finding the Fourth Proportional to 37,139.75, 51,253.13 and 20,372.75

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Solution

The fourth proportional to 37,139.75, 51,253.13 and 20,372.75 is: 28,114.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,139.75 : 51,253.13 = 20,372.75 : x
  2. Step 2: Convert to fraction form
    37,139.75/51,253.13 = 20,372.75/x
  3. Step 3: Cross multiply
    37,139.75x = 51,253.13 × 20,372.75
  4. Step 4: Simplify right side
    37,139.75x = 1,044,167,204.21
  5. Step 5: Solve for x
    x = 1,044,167,204.21/37,139.75
  6. Step 6: Final answer
    x = 28,114.55

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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.