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Finding the Fourth Proportional to 29,233.92, 40,339.20 and 18,619.20

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Solution

The fourth proportional to 29,233.92, 40,339.20 and 18,619.20 is: 25,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,233.92 : 40,339.20 = 18,619.20 : x
  2. Step 2: Convert to fraction form
    29,233.92/40,339.20 = 18,619.20/x
  3. Step 3: Cross multiply
    29,233.92x = 40,339.20 × 18,619.20
  4. Step 4: Simplify right side
    29,233.92x = 751,083,632.64
  5. Step 5: Solve for x
    x = 751,083,632.64/29,233.92
  6. Step 6: Final answer
    x = 25,692.20

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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.