Home / 31,049.75-42,848.66-16,902.70

Finding the Fourth Proportional to 31,049.75, 42,848.66 and 16,902.70

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Solution

The fourth proportional to 31,049.75, 42,848.66 and 16,902.70 is: 23,325.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,049.75 : 42,848.66 = 16,902.70 : x
  2. Step 2: Convert to fraction form
    31,049.75/42,848.66 = 16,902.70/x
  3. Step 3: Cross multiply
    31,049.75x = 42,848.66 × 16,902.70
  4. Step 4: Simplify right side
    31,049.75x = 724,258,045.38
  5. Step 5: Solve for x
    x = 724,258,045.38/31,049.75
  6. Step 6: Final answer
    x = 23,325.73

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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.