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Finding the Fourth Proportional to 29,290, 40,427.50 and 16,722.04

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Solution

The fourth proportional to 29,290, 40,427.50 and 16,722.04 is: 23,080.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290 : 40,427.50 = 16,722.04 : x
  2. Step 2: Convert to fraction form
    29,290/40,427.50 = 16,722.04/x
  3. Step 3: Cross multiply
    29,290x = 40,427.50 × 16,722.04
  4. Step 4: Simplify right side
    29,290x = 676,030,272.10
  5. Step 5: Solve for x
    x = 676,030,272.10/29,290
  6. Step 6: Final answer
    x = 23,080.58

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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.