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Finding the Fourth Proportional to 25,141.48, 34,652.48 and 21,530.20

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Solution

The fourth proportional to 25,141.48, 34,652.48 and 21,530.20 is: 29,675.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,141.48 : 34,652.48 = 21,530.20 : x
  2. Step 2: Convert to fraction form
    25,141.48/34,652.48 = 21,530.20/x
  3. Step 3: Cross multiply
    25,141.48x = 34,652.48 × 21,530.20
  4. Step 4: Simplify right side
    25,141.48x = 746,074,824.90
  5. Step 5: Solve for x
    x = 746,074,824.90/25,141.48
  6. Step 6: Final answer
    x = 29,675.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.