Home / 20,134.76-27,787.95-11,182.19

Finding the Fourth Proportional to 20,134.76, 27,787.95 and 11,182.19

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Solution

The fourth proportional to 20,134.76, 27,787.95 and 11,182.19 is: 15,432.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,134.76 : 27,787.95 = 11,182.19 : x
  2. Step 2: Convert to fraction form
    20,134.76/27,787.95 = 11,182.19/x
  3. Step 3: Cross multiply
    20,134.76x = 27,787.95 × 11,182.19
  4. Step 4: Simplify right side
    20,134.76x = 310,729,997.67
  5. Step 5: Solve for x
    x = 310,729,997.67/20,134.76
  6. Step 6: Final answer
    x = 15,432.52

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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.