Home / 25,972.11-38,948.45-20,490.03

Finding the Fourth Proportional to 25,972.11, 38,948.45 and 20,490.03

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Solution

The fourth proportional to 25,972.11, 38,948.45 and 20,490.03 is: 30,727.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,972.11 : 38,948.45 = 20,490.03 : x
  2. Step 2: Convert to fraction form
    25,972.11/38,948.45 = 20,490.03/x
  3. Step 3: Cross multiply
    25,972.11x = 38,948.45 × 20,490.03
  4. Step 4: Simplify right side
    25,972.11x = 798,054,806.50
  5. Step 5: Solve for x
    x = 798,054,806.50/25,972.11
  6. Step 6: Final answer
    x = 30,727.38

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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.