Home / 21,182.28-31,767.33-8,532

Finding the Fourth Proportional to 21,182.28, 31,767.33 and 8,532

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Solution

The fourth proportional to 21,182.28, 31,767.33 and 8,532 is: 12,795.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.28 : 31,767.33 = 8,532 : x
  2. Step 2: Convert to fraction form
    21,182.28/31,767.33 = 8,532/x
  3. Step 3: Cross multiply
    21,182.28x = 31,767.33 × 8,532
  4. Step 4: Simplify right side
    21,182.28x = 271,038,859.56
  5. Step 5: Solve for x
    x = 271,038,859.56/21,182.28
  6. Step 6: Final answer
    x = 12,795.55

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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.