Home / 22,660.38-31,270.67-12,588.57

Finding the Fourth Proportional to 22,660.38, 31,270.67 and 12,588.57

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Solution

The fourth proportional to 22,660.38, 31,270.67 and 12,588.57 is: 17,371.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,660.38 : 31,270.67 = 12,588.57 : x
  2. Step 2: Convert to fraction form
    22,660.38/31,270.67 = 12,588.57/x
  3. Step 3: Cross multiply
    22,660.38x = 31,270.67 × 12,588.57
  4. Step 4: Simplify right side
    22,660.38x = 393,652,955.30
  5. Step 5: Solve for x
    x = 393,652,955.30/22,660.38
  6. Step 6: Final answer
    x = 17,371.86

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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.