Home / 20,033.43-27,642.40-12,864.62

Finding the Fourth Proportional to 20,033.43, 27,642.40 and 12,864.62

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Solution

The fourth proportional to 20,033.43, 27,642.40 and 12,864.62 is: 17,750.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,033.43 : 27,642.40 = 12,864.62 : x
  2. Step 2: Convert to fraction form
    20,033.43/27,642.40 = 12,864.62/x
  3. Step 3: Cross multiply
    20,033.43x = 27,642.40 × 12,864.62
  4. Step 4: Simplify right side
    20,033.43x = 355,609,008.83
  5. Step 5: Solve for x
    x = 355,609,008.83/20,033.43
  6. Step 6: Final answer
    x = 17,750.78

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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.