Home / 37,139.06-51,251.97-20,372.18

Finding the Fourth Proportional to 37,139.06, 51,251.97 and 20,372.18

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Solution

The fourth proportional to 37,139.06, 51,251.97 and 20,372.18 is: 28,113.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,139.06 : 51,251.97 = 20,372.18 : x
  2. Step 2: Convert to fraction form
    37,139.06/51,251.97 = 20,372.18/x
  3. Step 3: Cross multiply
    37,139.06x = 51,251.97 × 20,372.18
  4. Step 4: Simplify right side
    37,139.06x = 1,044,114,358.19
  5. Step 5: Solve for x
    x = 1,044,114,358.19/37,139.06
  6. Step 6: Final answer
    x = 28,113.65

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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.