Home / 25,872.34-35,703.96-15,117.83

Finding the Fourth Proportional to 25,872.34, 35,703.96 and 15,117.83

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Solution

The fourth proportional to 25,872.34, 35,703.96 and 15,117.83 is: 20,862.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,872.34 : 35,703.96 = 15,117.83 : x
  2. Step 2: Convert to fraction form
    25,872.34/35,703.96 = 15,117.83/x
  3. Step 3: Cross multiply
    25,872.34x = 35,703.96 × 15,117.83
  4. Step 4: Simplify right side
    25,872.34x = 539,766,397.61
  5. Step 5: Solve for x
    x = 539,766,397.61/25,872.34
  6. Step 6: Final answer
    x = 20,862.68

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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.