Home / 40,871.22-61,307.03-12,408.42

Finding the Fourth Proportional to 40,871.22, 61,307.03 and 12,408.42

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Solution

The fourth proportional to 40,871.22, 61,307.03 and 12,408.42 is: 18,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,871.22 : 61,307.03 = 12,408.42 : x
  2. Step 2: Convert to fraction form
    40,871.22/61,307.03 = 12,408.42/x
  3. Step 3: Cross multiply
    40,871.22x = 61,307.03 × 12,408.42
  4. Step 4: Simplify right side
    40,871.22x = 760,723,377.19
  5. Step 5: Solve for x
    x = 760,723,377.19/40,871.22
  6. Step 6: Final answer
    x = 18,612.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.