Home / 21,417.65-32,131.91-8,266.49

Finding the Fourth Proportional to 21,417.65, 32,131.91 and 8,266.49

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Solution

The fourth proportional to 21,417.65, 32,131.91 and 8,266.49 is: 12,401.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,417.65 : 32,131.91 = 8,266.49 : x
  2. Step 2: Convert to fraction form
    21,417.65/32,131.91 = 8,266.49/x
  3. Step 3: Cross multiply
    21,417.65x = 32,131.91 × 8,266.49
  4. Step 4: Simplify right side
    21,417.65x = 265,617,972.70
  5. Step 5: Solve for x
    x = 265,617,972.70/21,417.65
  6. Step 6: Final answer
    x = 12,401.83

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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.