Home / 21,618.57-32,399.58-11,079.66

Finding the Fourth Proportional to 21,618.57, 32,399.58 and 11,079.66

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Solution

The fourth proportional to 21,618.57, 32,399.58 and 11,079.66 is: 16,605.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,618.57 : 32,399.58 = 11,079.66 : x
  2. Step 2: Convert to fraction form
    21,618.57/32,399.58 = 11,079.66/x
  3. Step 3: Cross multiply
    21,618.57x = 32,399.58 × 11,079.66
  4. Step 4: Simplify right side
    21,618.57x = 358,976,330.54
  5. Step 5: Solve for x
    x = 358,976,330.54/21,618.57
  6. Step 6: Final answer
    x = 16,605.00

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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.