Home / 34,757.74-52,128.56-20,721.70

Finding the Fourth Proportional to 34,757.74, 52,128.56 and 20,721.70

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Solution

The fourth proportional to 34,757.74, 52,128.56 and 20,721.70 is: 31,077.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,757.74 : 52,128.56 = 20,721.70 : x
  2. Step 2: Convert to fraction form
    34,757.74/52,128.56 = 20,721.70/x
  3. Step 3: Cross multiply
    34,757.74x = 52,128.56 × 20,721.70
  4. Step 4: Simplify right side
    34,757.74x = 1,080,192,381.75
  5. Step 5: Solve for x
    x = 1,080,192,381.75/34,757.74
  6. Step 6: Final answer
    x = 31,077.75

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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.