Home / 38,144.85-57,143.47-21,454.17

Finding the Fourth Proportional to 38,144.85, 57,143.47 and 21,454.17

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Solution

The fourth proportional to 38,144.85, 57,143.47 and 21,454.17 is: 32,139.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,144.85 : 57,143.47 = 21,454.17 : x
  2. Step 2: Convert to fraction form
    38,144.85/57,143.47 = 21,454.17/x
  3. Step 3: Cross multiply
    38,144.85x = 57,143.47 × 21,454.17
  4. Step 4: Simplify right side
    38,144.85x = 1,225,965,719.77
  5. Step 5: Solve for x
    x = 1,225,965,719.77/38,144.85
  6. Step 6: Final answer
    x = 32,139.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.