Home / 25,729.56-38,601.63-13,258.71

Finding the Fourth Proportional to 25,729.56, 38,601.63 and 13,258.71

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Solution

The fourth proportional to 25,729.56, 38,601.63 and 13,258.71 is: 19,891.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.56 : 38,601.63 = 13,258.71 : x
  2. Step 2: Convert to fraction form
    25,729.56/38,601.63 = 13,258.71/x
  3. Step 3: Cross multiply
    25,729.56x = 38,601.63 × 13,258.71
  4. Step 4: Simplify right side
    25,729.56x = 511,807,817.70
  5. Step 5: Solve for x
    x = 511,807,817.70/25,729.56
  6. Step 6: Final answer
    x = 19,891.82

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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.