Home / 25,445.12-38,153.04-21,310.88

Finding the Fourth Proportional to 25,445.12, 38,153.04 and 21,310.88

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Solution

The fourth proportional to 25,445.12, 38,153.04 and 21,310.88 is: 31,954.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,445.12 : 38,153.04 = 21,310.88 : x
  2. Step 2: Convert to fraction form
    25,445.12/38,153.04 = 21,310.88/x
  3. Step 3: Cross multiply
    25,445.12x = 38,153.04 × 21,310.88
  4. Step 4: Simplify right side
    25,445.12x = 813,074,857.08
  5. Step 5: Solve for x
    x = 813,074,857.08/25,445.12
  6. Step 6: Final answer
    x = 31,954.06

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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.