Home / 38,438.60-57,614.70-19,711.40

Finding the Fourth Proportional to 38,438.60, 57,614.70 and 19,711.40

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Solution

The fourth proportional to 38,438.60, 57,614.70 and 19,711.40 is: 29,544.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,438.60 : 57,614.70 = 19,711.40 : x
  2. Step 2: Convert to fraction form
    38,438.60/57,614.70 = 19,711.40/x
  3. Step 3: Cross multiply
    38,438.60x = 57,614.70 × 19,711.40
  4. Step 4: Simplify right side
    38,438.60x = 1,135,666,397.58
  5. Step 5: Solve for x
    x = 1,135,666,397.58/38,438.60
  6. Step 6: Final answer
    x = 29,544.95

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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.