Home / 21,080.86-29,042.19-14,695.85

Finding the Fourth Proportional to 21,080.86, 29,042.19 and 14,695.85

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Solution

The fourth proportional to 21,080.86, 29,042.19 and 14,695.85 is: 20,245.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.86 : 29,042.19 = 14,695.85 : x
  2. Step 2: Convert to fraction form
    21,080.86/29,042.19 = 14,695.85/x
  3. Step 3: Cross multiply
    21,080.86x = 29,042.19 × 14,695.85
  4. Step 4: Simplify right side
    21,080.86x = 426,799,686.06
  5. Step 5: Solve for x
    x = 426,799,686.06/21,080.86
  6. Step 6: Final answer
    x = 20,245.84

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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.