Home / 15,882.30-21,899.58-10,132.08

Finding the Fourth Proportional to 15,882.30, 21,899.58 and 10,132.08

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Solution

The fourth proportional to 15,882.30, 21,899.58 and 10,132.08 is: 13,970.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,882.30 : 21,899.58 = 10,132.08 : x
  2. Step 2: Convert to fraction form
    15,882.30/21,899.58 = 10,132.08/x
  3. Step 3: Cross multiply
    15,882.30x = 21,899.58 × 10,132.08
  4. Step 4: Simplify right side
    15,882.30x = 221,888,296.53
  5. Step 5: Solve for x
    x = 221,888,296.53/15,882.30
  6. Step 6: Final answer
    x = 13,970.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.