Home / 22,581.65-31,161.79-12,372.50

Finding the Fourth Proportional to 22,581.65, 31,161.79 and 12,372.50

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Solution

The fourth proportional to 22,581.65, 31,161.79 and 12,372.50 is: 17,073.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,581.65 : 31,161.79 = 12,372.50 : x
  2. Step 2: Convert to fraction form
    22,581.65/31,161.79 = 12,372.50/x
  3. Step 3: Cross multiply
    22,581.65x = 31,161.79 × 12,372.50
  4. Step 4: Simplify right side
    22,581.65x = 385,549,246.78
  5. Step 5: Solve for x
    x = 385,549,246.78/22,581.65
  6. Step 6: Final answer
    x = 17,073.56

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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.