Home / 20,390.89-30,591.80-16,246.52

Finding the Fourth Proportional to 20,390.89, 30,591.80 and 16,246.52

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Solution

The fourth proportional to 20,390.89, 30,591.80 and 16,246.52 is: 24,374.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,390.89 : 30,591.80 = 16,246.52 : x
  2. Step 2: Convert to fraction form
    20,390.89/30,591.80 = 16,246.52/x
  3. Step 3: Cross multiply
    20,390.89x = 30,591.80 × 16,246.52
  4. Step 4: Simplify right side
    20,390.89x = 497,010,290.54
  5. Step 5: Solve for x
    x = 497,010,290.54/20,390.89
  6. Step 6: Final answer
    x = 24,374.13

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1.5x scale

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.