Home / 22,947.23-31,661.78-13,381.38

Finding the Fourth Proportional to 22,947.23, 31,661.78 and 13,381.38

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Solution

The fourth proportional to 22,947.23, 31,661.78 and 13,381.38 is: 18,463.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,947.23 : 31,661.78 = 13,381.38 : x
  2. Step 2: Convert to fraction form
    22,947.23/31,661.78 = 13,381.38/x
  3. Step 3: Cross multiply
    22,947.23x = 31,661.78 × 13,381.38
  4. Step 4: Simplify right side
    22,947.23x = 423,678,242.75
  5. Step 5: Solve for x
    x = 423,678,242.75/22,947.23
  6. Step 6: Final answer
    x = 18,463.16

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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.