Home / 28,689.21-43,031.07-9,966.33

Finding the Fourth Proportional to 28,689.21, 43,031.07 and 9,966.33

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Solution

The fourth proportional to 28,689.21, 43,031.07 and 9,966.33 is: 14,948.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,689.21 : 43,031.07 = 9,966.33 : x
  2. Step 2: Convert to fraction form
    28,689.21/43,031.07 = 9,966.33/x
  3. Step 3: Cross multiply
    28,689.21x = 43,031.07 × 9,966.33
  4. Step 4: Simplify right side
    28,689.21x = 428,861,843.87
  5. Step 5: Solve for x
    x = 428,861,843.87/28,689.21
  6. Step 6: Final answer
    x = 14,948.54

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Similar ratio
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1.5x scale

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.