Home / 23,101.49-31,879.90-12,491.08

Finding the Fourth Proportional to 23,101.49, 31,879.90 and 12,491.08

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Solution

The fourth proportional to 23,101.49, 31,879.90 and 12,491.08 is: 17,237.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,101.49 : 31,879.90 = 12,491.08 : x
  2. Step 2: Convert to fraction form
    23,101.49/31,879.90 = 12,491.08/x
  3. Step 3: Cross multiply
    23,101.49x = 31,879.90 × 12,491.08
  4. Step 4: Simplify right side
    23,101.49x = 398,214,381.29
  5. Step 5: Solve for x
    x = 398,214,381.29/23,101.49
  6. Step 6: Final answer
    x = 17,237.61

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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.