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Finding the Fourth Proportional to 29,347.96, 40,500.18 and 15,919.42

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Solution

The fourth proportional to 29,347.96, 40,500.18 and 15,919.42 is: 21,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,347.96 : 40,500.18 = 15,919.42 : x
  2. Step 2: Convert to fraction form
    29,347.96/40,500.18 = 15,919.42/x
  3. Step 3: Cross multiply
    29,347.96x = 40,500.18 × 15,919.42
  4. Step 4: Simplify right side
    29,347.96x = 644,739,375.50
  5. Step 5: Solve for x
    x = 644,739,375.50/29,347.96
  6. Step 6: Final answer
    x = 21,968.80

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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.