Home / 37,139.01-51,251.57-20,143.20

Finding the Fourth Proportional to 37,139.01, 51,251.57 and 20,143.20

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Solution

The fourth proportional to 37,139.01, 51,251.57 and 20,143.20 is: 27,797.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,139.01 : 51,251.57 = 20,143.20 : x
  2. Step 2: Convert to fraction form
    37,139.01/51,251.57 = 20,143.20/x
  3. Step 3: Cross multiply
    37,139.01x = 51,251.57 × 20,143.20
  4. Step 4: Simplify right side
    37,139.01x = 1,032,370,524.11
  5. Step 5: Solve for x
    x = 1,032,370,524.11/37,139.01
  6. Step 6: Final answer
    x = 27,797.47

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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.