Home / 15,972.60-21,882.56-15,374.04

Finding the Fourth Proportional to 15,972.60, 21,882.56 and 15,374.04

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Solution

The fourth proportional to 15,972.60, 21,882.56 and 15,374.04 is: 21,062.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.60 : 21,882.56 = 15,374.04 : x
  2. Step 2: Convert to fraction form
    15,972.60/21,882.56 = 15,374.04/x
  3. Step 3: Cross multiply
    15,972.60x = 21,882.56 × 15,374.04
  4. Step 4: Simplify right side
    15,972.60x = 336,423,352.74
  5. Step 5: Solve for x
    x = 336,423,352.74/15,972.60
  6. Step 6: Final answer
    x = 21,062.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.