Home / 20,079.18-30,118.98-8,229.93

Finding the Fourth Proportional to 20,079.18, 30,118.98 and 8,229.93

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Solution

The fourth proportional to 20,079.18, 30,118.98 and 8,229.93 is: 12,344.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,079.18 : 30,118.98 = 8,229.93 : x
  2. Step 2: Convert to fraction form
    20,079.18/30,118.98 = 8,229.93/x
  3. Step 3: Cross multiply
    20,079.18x = 30,118.98 × 8,229.93
  4. Step 4: Simplify right side
    20,079.18x = 247,877,097.07
  5. Step 5: Solve for x
    x = 247,877,097.07/20,079.18
  6. Step 6: Final answer
    x = 12,344.98

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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.