Home / 20,110.58-27,752.61-11,158.07

Finding the Fourth Proportional to 20,110.58, 27,752.61 and 11,158.07

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Solution

The fourth proportional to 20,110.58, 27,752.61 and 11,158.07 is: 15,398.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.58 : 27,752.61 = 11,158.07 : x
  2. Step 2: Convert to fraction form
    20,110.58/27,752.61 = 11,158.07/x
  3. Step 3: Cross multiply
    20,110.58x = 27,752.61 × 11,158.07
  4. Step 4: Simplify right side
    20,110.58x = 309,665,426.30
  5. Step 5: Solve for x
    x = 309,665,426.30/20,110.58
  6. Step 6: Final answer
    x = 15,398.13

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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.