Home / 25,787.82-38,507.12-20,463.03

Finding the Fourth Proportional to 25,787.82, 38,507.12 and 20,463.03

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Solution

The fourth proportional to 25,787.82, 38,507.12 and 20,463.03 is: 30,555.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,787.82 : 38,507.12 = 20,463.03 : x
  2. Step 2: Convert to fraction form
    25,787.82/38,507.12 = 20,463.03/x
  3. Step 3: Cross multiply
    25,787.82x = 38,507.12 × 20,463.03
  4. Step 4: Simplify right side
    25,787.82x = 787,972,249.46
  5. Step 5: Solve for x
    x = 787,972,249.46/25,787.82
  6. Step 6: Final answer
    x = 30,555.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.