Home / 21,609.80-32,392.47-8,279.18

Finding the Fourth Proportional to 21,609.80, 32,392.47 and 8,279.18

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Solution

The fourth proportional to 21,609.80, 32,392.47 and 8,279.18 is: 12,410.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,609.80 : 32,392.47 = 8,279.18 : x
  2. Step 2: Convert to fraction form
    21,609.80/32,392.47 = 8,279.18/x
  3. Step 3: Cross multiply
    21,609.80x = 32,392.47 × 8,279.18
  4. Step 4: Simplify right side
    21,609.80x = 268,183,080.33
  5. Step 5: Solve for x
    x = 268,183,080.33/21,609.80
  6. Step 6: Final answer
    x = 12,410.25

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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.