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Finding the Fourth Proportional to 22,287.04, 30,755 and 13,339.44

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Solution

The fourth proportional to 22,287.04, 30,755 and 13,339.44 is: 18,407.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,287.04 : 30,755 = 13,339.44 : x
  2. Step 2: Convert to fraction form
    22,287.04/30,755 = 13,339.44/x
  3. Step 3: Cross multiply
    22,287.04x = 30,755 × 13,339.44
  4. Step 4: Simplify right side
    22,287.04x = 410,254,477.20
  5. Step 5: Solve for x
    x = 410,254,477.20/22,287.04
  6. Step 6: Final answer
    x = 18,407.76

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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.