Home / 25,520.25-38,271.51-9,721.47

Finding the Fourth Proportional to 25,520.25, 38,271.51 and 9,721.47

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Solution

The fourth proportional to 25,520.25, 38,271.51 and 9,721.47 is: 14,578.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,520.25 : 38,271.51 = 9,721.47 : x
  2. Step 2: Convert to fraction form
    25,520.25/38,271.51 = 9,721.47/x
  3. Step 3: Cross multiply
    25,520.25x = 38,271.51 × 9,721.47
  4. Step 4: Simplify right side
    25,520.25x = 372,055,336.32
  5. Step 5: Solve for x
    x = 372,055,336.32/25,520.25
  6. Step 6: Final answer
    x = 14,578.83

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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.