Home / 22,838.56-31,521.36-13,279.80

Finding the Fourth Proportional to 22,838.56, 31,521.36 and 13,279.80

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Solution

The fourth proportional to 22,838.56, 31,521.36 and 13,279.80 is: 18,328.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,838.56 : 31,521.36 = 13,279.80 : x
  2. Step 2: Convert to fraction form
    22,838.56/31,521.36 = 13,279.80/x
  3. Step 3: Cross multiply
    22,838.56x = 31,521.36 × 13,279.80
  4. Step 4: Simplify right side
    22,838.56x = 418,597,356.53
  5. Step 5: Solve for x
    x = 418,597,356.53/22,838.56
  6. Step 6: Final answer
    x = 18,328.54

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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.