Home / 28,757.90-43,124.70-9,031.16

Finding the Fourth Proportional to 28,757.90, 43,124.70 and 9,031.16

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Solution

The fourth proportional to 28,757.90, 43,124.70 and 9,031.16 is: 13,542.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.90 : 43,124.70 = 9,031.16 : x
  2. Step 2: Convert to fraction form
    28,757.90/43,124.70 = 9,031.16/x
  3. Step 3: Cross multiply
    28,757.90x = 43,124.70 × 9,031.16
  4. Step 4: Simplify right side
    28,757.90x = 389,466,065.65
  5. Step 5: Solve for x
    x = 389,466,065.65/28,757.90
  6. Step 6: Final answer
    x = 13,542.92

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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.