Home / 20,110.42-27,752.45-11,158.10

Finding the Fourth Proportional to 20,110.42, 27,752.45 and 11,158.10

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Solution

The fourth proportional to 20,110.42, 27,752.45 and 11,158.10 is: 15,398.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,110.42 : 27,752.45 = 11,158.10 : x
  2. Step 2: Convert to fraction form
    20,110.42/27,752.45 = 11,158.10/x
  3. Step 3: Cross multiply
    20,110.42x = 27,752.45 × 11,158.10
  4. Step 4: Simplify right side
    20,110.42x = 309,664,612.35
  5. Step 5: Solve for x
    x = 309,664,612.35/20,110.42
  6. Step 6: Final answer
    x = 15,398.22

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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.