Home / 38,271.79-57,422.45-13,314.43

Finding the Fourth Proportional to 38,271.79, 57,422.45 and 13,314.43

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Solution

The fourth proportional to 38,271.79, 57,422.45 and 13,314.43 is: 19,976.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,271.79 : 57,422.45 = 13,314.43 : x
  2. Step 2: Convert to fraction form
    38,271.79/57,422.45 = 13,314.43/x
  3. Step 3: Cross multiply
    38,271.79x = 57,422.45 × 13,314.43
  4. Step 4: Simplify right side
    38,271.79x = 764,547,124.38
  5. Step 5: Solve for x
    x = 764,547,124.38/38,271.79
  6. Step 6: Final answer
    x = 19,976.78

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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.