Home / 25,061.70-34,585.08-13,731.90

Finding the Fourth Proportional to 25,061.70, 34,585.08 and 13,731.90

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Solution

The fourth proportional to 25,061.70, 34,585.08 and 13,731.90 is: 18,949.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,061.70 : 34,585.08 = 13,731.90 : x
  2. Step 2: Convert to fraction form
    25,061.70/34,585.08 = 13,731.90/x
  3. Step 3: Cross multiply
    25,061.70x = 34,585.08 × 13,731.90
  4. Step 4: Simplify right side
    25,061.70x = 474,918,860.05
  5. Step 5: Solve for x
    x = 474,918,860.05/25,061.70
  6. Step 6: Final answer
    x = 18,949.99

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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.