Home / 38,146.72-57,478.24-31,716.40

Finding the Fourth Proportional to 38,146.72, 57,478.24 and 31,716.40

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Solution

The fourth proportional to 38,146.72, 57,478.24 and 31,716.40 is: 47,789.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,146.72 : 57,478.24 = 31,716.40 : x
  2. Step 2: Convert to fraction form
    38,146.72/57,478.24 = 31,716.40/x
  3. Step 3: Cross multiply
    38,146.72x = 57,478.24 × 31,716.40
  4. Step 4: Simplify right side
    38,146.72x = 1,823,002,851.14
  5. Step 5: Solve for x
    x = 1,823,002,851.14/38,146.72
  6. Step 6: Final answer
    x = 47,789.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.