Home / 18,680.32-27,951.36-15,362.56

Finding the Fourth Proportional to 18,680.32, 27,951.36 and 15,362.56

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Solution

The fourth proportional to 18,680.32, 27,951.36 and 15,362.56 is: 22,987.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,680.32 : 27,951.36 = 15,362.56 : x
  2. Step 2: Convert to fraction form
    18,680.32/27,951.36 = 15,362.56/x
  3. Step 3: Cross multiply
    18,680.32x = 27,951.36 × 15,362.56
  4. Step 4: Simplify right side
    18,680.32x = 429,404,445.08
  5. Step 5: Solve for x
    x = 429,404,445.08/18,680.32
  6. Step 6: Final answer
    x = 22,987.00

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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.