Home / 21,528.23-32,279.13-8,365.23

Finding the Fourth Proportional to 21,528.23, 32,279.13 and 8,365.23

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Solution

The fourth proportional to 21,528.23, 32,279.13 and 8,365.23 is: 12,542.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,528.23 : 32,279.13 = 8,365.23 : x
  2. Step 2: Convert to fraction form
    21,528.23/32,279.13 = 8,365.23/x
  3. Step 3: Cross multiply
    21,528.23x = 32,279.13 × 8,365.23
  4. Step 4: Simplify right side
    21,528.23x = 270,022,346.65
  5. Step 5: Solve for x
    x = 270,022,346.65/21,528.23
  6. Step 6: Final answer
    x = 12,542.71

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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.