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Finding the Fourth Proportional to 29,220, 40,330.08 and 18,048.48

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Solution

The fourth proportional to 29,220, 40,330.08 and 18,048.48 is: 24,910.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,220 : 40,330.08 = 18,048.48 : x
  2. Step 2: Convert to fraction form
    29,220/40,330.08 = 18,048.48/x
  3. Step 3: Cross multiply
    29,220x = 40,330.08 × 18,048.48
  4. Step 4: Simplify right side
    29,220x = 727,896,642.28
  5. Step 5: Solve for x
    x = 727,896,642.28/29,220
  6. Step 6: Final answer
    x = 24,910.90

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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.