Home / 25,721.72-38,583.38-8,854.55

Finding the Fourth Proportional to 25,721.72, 38,583.38 and 8,854.55

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Solution

The fourth proportional to 25,721.72, 38,583.38 and 8,854.55 is: 13,282.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,721.72 : 38,583.38 = 8,854.55 : x
  2. Step 2: Convert to fraction form
    25,721.72/38,583.38 = 8,854.55/x
  3. Step 3: Cross multiply
    25,721.72x = 38,583.38 × 8,854.55
  4. Step 4: Simplify right side
    25,721.72x = 341,638,296.60
  5. Step 5: Solve for x
    x = 341,638,296.60/25,721.72
  6. Step 6: Final answer
    x = 13,282.10

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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.