Home / 37,378.47-51,581.88-20,382.66

Finding the Fourth Proportional to 37,378.47, 51,581.88 and 20,382.66

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Solution

The fourth proportional to 37,378.47, 51,581.88 and 20,382.66 is: 28,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,378.47 : 51,581.88 = 20,382.66 : x
  2. Step 2: Convert to fraction form
    37,378.47/51,581.88 = 20,382.66/x
  3. Step 3: Cross multiply
    37,378.47x = 51,581.88 × 20,382.66
  4. Step 4: Simplify right side
    37,378.47x = 1,051,375,922.20
  5. Step 5: Solve for x
    x = 1,051,375,922.20/37,378.47
  6. Step 6: Final answer
    x = 28,127.85

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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.