Home / 21,549.10-32,310.42-8,386.15

Finding the Fourth Proportional to 21,549.10, 32,310.42 and 8,386.15

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Solution

The fourth proportional to 21,549.10, 32,310.42 and 8,386.15 is: 12,574.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,549.10 : 32,310.42 = 8,386.15 : x
  2. Step 2: Convert to fraction form
    21,549.10/32,310.42 = 8,386.15/x
  3. Step 3: Cross multiply
    21,549.10x = 32,310.42 × 8,386.15
  4. Step 4: Simplify right side
    21,549.10x = 270,960,028.68
  5. Step 5: Solve for x
    x = 270,960,028.68/21,549.10
  6. Step 6: Final answer
    x = 12,574.08

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1.5x scale

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.