Home / 22,678.74-31,304.34-13,255.20

Finding the Fourth Proportional to 22,678.74, 31,304.34 and 13,255.20

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Solution

The fourth proportional to 22,678.74, 31,304.34 and 13,255.20 is: 18,296.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,678.74 : 31,304.34 = 13,255.20 : x
  2. Step 2: Convert to fraction form
    22,678.74/31,304.34 = 13,255.20/x
  3. Step 3: Cross multiply
    22,678.74x = 31,304.34 × 13,255.20
  4. Step 4: Simplify right side
    22,678.74x = 414,945,287.57
  5. Step 5: Solve for x
    x = 414,945,287.57/22,678.74
  6. Step 6: Final answer
    x = 18,296.66

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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.