Home / 28,678.73-39,560.60-18,049.91

Finding the Fourth Proportional to 28,678.73, 39,560.60 and 18,049.91

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Solution

The fourth proportional to 28,678.73, 39,560.60 and 18,049.91 is: 24,898.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,678.73 : 39,560.60 = 18,049.91 : x
  2. Step 2: Convert to fraction form
    28,678.73/39,560.60 = 18,049.91/x
  3. Step 3: Cross multiply
    28,678.73x = 39,560.60 × 18,049.91
  4. Step 4: Simplify right side
    28,678.73x = 714,065,116.87
  5. Step 5: Solve for x
    x = 714,065,116.87/28,678.73
  6. Step 6: Final answer
    x = 24,898.77

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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.