Home / 25,729.79-38,589.29-7,257.47

Finding the Fourth Proportional to 25,729.79, 38,589.29 and 7,257.47

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Solution

The fourth proportional to 25,729.79, 38,589.29 and 7,257.47 is: 10,884.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,729.79 : 38,589.29 = 7,257.47 : x
  2. Step 2: Convert to fraction form
    25,729.79/38,589.29 = 7,257.47/x
  3. Step 3: Cross multiply
    25,729.79x = 38,589.29 × 7,257.47
  4. Step 4: Simplify right side
    25,729.79x = 280,060,578.21
  5. Step 5: Solve for x
    x = 280,060,578.21/25,729.79
  6. Step 6: Final answer
    x = 10,884.68

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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.