Home / 22,991.67-31,729.97-13,434.65

Finding the Fourth Proportional to 22,991.67, 31,729.97 and 13,434.65

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Solution

The fourth proportional to 22,991.67, 31,729.97 and 13,434.65 is: 18,540.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,991.67 : 31,729.97 = 13,434.65 : x
  2. Step 2: Convert to fraction form
    22,991.67/31,729.97 = 13,434.65/x
  3. Step 3: Cross multiply
    22,991.67x = 31,729.97 × 13,434.65
  4. Step 4: Simplify right side
    22,991.67x = 426,280,974.29
  5. Step 5: Solve for x
    x = 426,280,974.29/22,991.67
  6. Step 6: Final answer
    x = 18,540.67

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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.