Home / 20,027.08-27,628.17-12,955.78

Finding the Fourth Proportional to 20,027.08, 27,628.17 and 12,955.78

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Solution

The fourth proportional to 20,027.08, 27,628.17 and 12,955.78 is: 17,873.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.08 : 27,628.17 = 12,955.78 : x
  2. Step 2: Convert to fraction form
    20,027.08/27,628.17 = 12,955.78/x
  3. Step 3: Cross multiply
    20,027.08x = 27,628.17 × 12,955.78
  4. Step 4: Simplify right side
    20,027.08x = 357,944,492.32
  5. Step 5: Solve for x
    x = 357,944,492.32/20,027.08
  6. Step 6: Final answer
    x = 17,873.02

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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.