Home / 18,731.86-28,074.40-12,050.57

Finding the Fourth Proportional to 18,731.86, 28,074.40 and 12,050.57

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Solution

The fourth proportional to 18,731.86, 28,074.40 and 12,050.57 is: 18,060.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,731.86 : 28,074.40 = 12,050.57 : x
  2. Step 2: Convert to fraction form
    18,731.86/28,074.40 = 12,050.57/x
  3. Step 3: Cross multiply
    18,731.86x = 28,074.40 × 12,050.57
  4. Step 4: Simplify right side
    18,731.86x = 338,312,562.47
  5. Step 5: Solve for x
    x = 338,312,562.47/18,731.86
  6. Step 6: Final answer
    x = 18,060.81

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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.