Home / 25,618.80-38,428.20-13,954.80

Finding the Fourth Proportional to 25,618.80, 38,428.20 and 13,954.80

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Solution

The fourth proportional to 25,618.80, 38,428.20 and 13,954.80 is: 20,932.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,618.80 : 38,428.20 = 13,954.80 : x
  2. Step 2: Convert to fraction form
    25,618.80/38,428.20 = 13,954.80/x
  3. Step 3: Cross multiply
    25,618.80x = 38,428.20 × 13,954.80
  4. Step 4: Simplify right side
    25,618.80x = 536,257,845.36
  5. Step 5: Solve for x
    x = 536,257,845.36/25,618.80
  6. Step 6: Final answer
    x = 20,932.20

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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.