Home / 22,234.19-30,678.02-13,279.91

Finding the Fourth Proportional to 22,234.19, 30,678.02 and 13,279.91

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Solution

The fourth proportional to 22,234.19, 30,678.02 and 13,279.91 is: 18,323.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,234.19 : 30,678.02 = 13,279.91 : x
  2. Step 2: Convert to fraction form
    22,234.19/30,678.02 = 13,279.91/x
  3. Step 3: Cross multiply
    22,234.19x = 30,678.02 × 13,279.91
  4. Step 4: Simplify right side
    22,234.19x = 407,401,377.78
  5. Step 5: Solve for x
    x = 407,401,377.78/22,234.19
  6. Step 6: Final answer
    x = 18,323.19

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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.