Home / 34,721.12-52,066.11-20,687.76

Finding the Fourth Proportional to 34,721.12, 52,066.11 and 20,687.76

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Solution

The fourth proportional to 34,721.12, 52,066.11 and 20,687.76 is: 31,022.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,721.12 : 52,066.11 = 20,687.76 : x
  2. Step 2: Convert to fraction form
    34,721.12/52,066.11 = 20,687.76/x
  3. Step 3: Cross multiply
    34,721.12x = 52,066.11 × 20,687.76
  4. Step 4: Simplify right side
    34,721.12x = 1,077,131,187.81
  5. Step 5: Solve for x
    x = 1,077,131,187.81/34,721.12
  6. Step 6: Final answer
    x = 31,022.36

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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.