Home / 20,122.04-27,751.38-12,953.18

Finding the Fourth Proportional to 20,122.04, 27,751.38 and 12,953.18

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Solution

The fourth proportional to 20,122.04, 27,751.38 and 12,953.18 is: 17,864.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,122.04 : 27,751.38 = 12,953.18 : x
  2. Step 2: Convert to fraction form
    20,122.04/27,751.38 = 12,953.18/x
  3. Step 3: Cross multiply
    20,122.04x = 27,751.38 × 12,953.18
  4. Step 4: Simplify right side
    20,122.04x = 359,468,620.39
  5. Step 5: Solve for x
    x = 359,468,620.39/20,122.04
  6. Step 6: Final answer
    x = 17,864.42

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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.