Home / 20,490.74-30,732.72-5,701.16

Finding the Fourth Proportional to 20,490.74, 30,732.72 and 5,701.16

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Solution

The fourth proportional to 20,490.74, 30,732.72 and 5,701.16 is: 8,550.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,490.74 : 30,732.72 = 5,701.16 : x
  2. Step 2: Convert to fraction form
    20,490.74/30,732.72 = 5,701.16/x
  3. Step 3: Cross multiply
    20,490.74x = 30,732.72 × 5,701.16
  4. Step 4: Simplify right side
    20,490.74x = 175,212,153.96
  5. Step 5: Solve for x
    x = 175,212,153.96/20,490.74
  6. Step 6: Final answer
    x = 8,550.80

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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.