Home / 22,738.83-34,087.28-20,870.78

Finding the Fourth Proportional to 22,738.83, 34,087.28 and 20,870.78

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Solution

The fourth proportional to 22,738.83, 34,087.28 and 20,870.78 is: 31,286.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,738.83 : 34,087.28 = 20,870.78 : x
  2. Step 2: Convert to fraction form
    22,738.83/34,087.28 = 20,870.78/x
  3. Step 3: Cross multiply
    22,738.83x = 34,087.28 × 20,870.78
  4. Step 4: Simplify right side
    22,738.83x = 711,427,846.89
  5. Step 5: Solve for x
    x = 711,427,846.89/22,738.83
  6. Step 6: Final answer
    x = 31,286.92

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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.