Home / 21,752.57-30,020.66-12,194.08

Finding the Fourth Proportional to 21,752.57, 30,020.66 and 12,194.08

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Solution

The fourth proportional to 21,752.57, 30,020.66 and 12,194.08 is: 16,829.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,752.57 : 30,020.66 = 12,194.08 : x
  2. Step 2: Convert to fraction form
    21,752.57/30,020.66 = 12,194.08/x
  3. Step 3: Cross multiply
    21,752.57x = 30,020.66 × 12,194.08
  4. Step 4: Simplify right side
    21,752.57x = 366,074,329.69
  5. Step 5: Solve for x
    x = 366,074,329.69/21,752.57
  6. Step 6: Final answer
    x = 16,829.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.