Home / 20,577.46-28,393.15-12,079.95

Finding the Fourth Proportional to 20,577.46, 28,393.15 and 12,079.95

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Solution

The fourth proportional to 20,577.46, 28,393.15 and 12,079.95 is: 16,668.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577.46 : 28,393.15 = 12,079.95 : x
  2. Step 2: Convert to fraction form
    20,577.46/28,393.15 = 12,079.95/x
  3. Step 3: Cross multiply
    20,577.46x = 28,393.15 × 12,079.95
  4. Step 4: Simplify right side
    20,577.46x = 342,987,832.34
  5. Step 5: Solve for x
    x = 342,987,832.34/20,577.46
  6. Step 6: Final answer
    x = 16,668.13

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.