Home / 28,678.41-39,560.17-18,049.59

Finding the Fourth Proportional to 28,678.41, 39,560.17 and 18,049.59

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Solution

The fourth proportional to 28,678.41, 39,560.17 and 18,049.59 is: 24,898.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.41 : 39,560.17 = 18,049.59 : x
  2. Step 2: Convert to fraction form
    28,678.41/39,560.17 = 18,049.59/x
  3. Step 3: Cross multiply
    28,678.41x = 39,560.17 × 18,049.59
  4. Step 4: Simplify right side
    28,678.41x = 714,044,947.73
  5. Step 5: Solve for x
    x = 714,044,947.73/28,678.41
  6. Step 6: Final answer
    x = 24,898.34

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1.5x scale

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.