Home / 22,811.18-31,480.47-12,603.65

Finding the Fourth Proportional to 22,811.18, 31,480.47 and 12,603.65

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Solution

The fourth proportional to 22,811.18, 31,480.47 and 12,603.65 is: 17,393.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,811.18 : 31,480.47 = 12,603.65 : x
  2. Step 2: Convert to fraction form
    22,811.18/31,480.47 = 12,603.65/x
  3. Step 3: Cross multiply
    22,811.18x = 31,480.47 × 12,603.65
  4. Step 4: Simplify right side
    22,811.18x = 396,768,668.31
  5. Step 5: Solve for x
    x = 396,768,668.31/22,811.18
  6. Step 6: Final answer
    x = 17,393.61

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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.