Home / 21,579.28-32,357.88-9,882.47

Finding the Fourth Proportional to 21,579.28, 32,357.88 and 9,882.47

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Solution

The fourth proportional to 21,579.28, 32,357.88 and 9,882.47 is: 14,818.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,579.28 : 32,357.88 = 9,882.47 : x
  2. Step 2: Convert to fraction form
    21,579.28/32,357.88 = 9,882.47/x
  3. Step 3: Cross multiply
    21,579.28x = 32,357.88 × 9,882.47
  4. Step 4: Simplify right side
    21,579.28x = 319,775,859.26
  5. Step 5: Solve for x
    x = 319,775,859.26/21,579.28
  6. Step 6: Final answer
    x = 14,818.65

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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.