Home / 25,728.06-38,599.38-13,257.17

Finding the Fourth Proportional to 25,728.06, 38,599.38 and 13,257.17

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Solution

The fourth proportional to 25,728.06, 38,599.38 and 13,257.17 is: 19,889.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,728.06 : 38,599.38 = 13,257.17 : x
  2. Step 2: Convert to fraction form
    25,728.06/38,599.38 = 13,257.17/x
  3. Step 3: Cross multiply
    25,728.06x = 38,599.38 × 13,257.17
  4. Step 4: Simplify right side
    25,728.06x = 511,718,349.56
  5. Step 5: Solve for x
    x = 511,718,349.56/25,728.06
  6. Step 6: Final answer
    x = 19,889.50

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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.