Home / 20,207.48-27,887.49-11,254.68

Finding the Fourth Proportional to 20,207.48, 27,887.49 and 11,254.68

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Solution

The fourth proportional to 20,207.48, 27,887.49 and 11,254.68 is: 15,532.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.48 : 27,887.49 = 11,254.68 : x
  2. Step 2: Convert to fraction form
    20,207.48/27,887.49 = 11,254.68/x
  3. Step 3: Cross multiply
    20,207.48x = 27,887.49 × 11,254.68
  4. Step 4: Simplify right side
    20,207.48x = 313,864,775.95
  5. Step 5: Solve for x
    x = 313,864,775.95/20,207.48
  6. Step 6: Final answer
    x = 15,532.11

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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.