Home / 22,439.84-30,938.15-18,391.96

Finding the Fourth Proportional to 22,439.84, 30,938.15 and 18,391.96

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Solution

The fourth proportional to 22,439.84, 30,938.15 and 18,391.96 is: 25,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,439.84 : 30,938.15 = 18,391.96 : x
  2. Step 2: Convert to fraction form
    22,439.84/30,938.15 = 18,391.96/x
  3. Step 3: Cross multiply
    22,439.84x = 30,938.15 × 18,391.96
  4. Step 4: Simplify right side
    22,439.84x = 569,013,301.93
  5. Step 5: Solve for x
    x = 569,013,301.93/22,439.84
  6. Step 6: Final answer
    x = 25,357.29

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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.