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Finding the Fourth Proportional to 22,279.68, 30,746.30 and 12,207.93

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Solution

The fourth proportional to 22,279.68, 30,746.30 and 12,207.93 is: 16,847.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,279.68 : 30,746.30 = 12,207.93 : x
  2. Step 2: Convert to fraction form
    22,279.68/30,746.30 = 12,207.93/x
  3. Step 3: Cross multiply
    22,279.68x = 30,746.30 × 12,207.93
  4. Step 4: Simplify right side
    22,279.68x = 375,348,617.12
  5. Step 5: Solve for x
    x = 375,348,617.12/22,279.68
  6. Step 6: Final answer
    x = 16,847.13

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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.