Home / 25,472.18-35,107.89-21,921.14

Finding the Fourth Proportional to 25,472.18, 35,107.89 and 21,921.14

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Solution

The fourth proportional to 25,472.18, 35,107.89 and 21,921.14 is: 30,213.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,472.18 : 35,107.89 = 21,921.14 : x
  2. Step 2: Convert to fraction form
    25,472.18/35,107.89 = 21,921.14/x
  3. Step 3: Cross multiply
    25,472.18x = 35,107.89 × 21,921.14
  4. Step 4: Simplify right side
    25,472.18x = 769,604,971.79
  5. Step 5: Solve for x
    x = 769,604,971.79/25,472.18
  6. Step 6: Final answer
    x = 30,213.55

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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.