Home / 31,195.17-43,051.10-20,577.29

Finding the Fourth Proportional to 31,195.17, 43,051.10 and 20,577.29

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Solution

The fourth proportional to 31,195.17, 43,051.10 and 20,577.29 is: 28,397.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,195.17 : 43,051.10 = 20,577.29 : x
  2. Step 2: Convert to fraction form
    31,195.17/43,051.10 = 20,577.29/x
  3. Step 3: Cross multiply
    31,195.17x = 43,051.10 × 20,577.29
  4. Step 4: Simplify right side
    31,195.17x = 885,874,651.38
  5. Step 5: Solve for x
    x = 885,874,651.38/31,195.17
  6. Step 6: Final answer
    x = 28,397.81

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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.