Home / 18,027.40-27,005.28-14,113.48

Finding the Fourth Proportional to 18,027.40, 27,005.28 and 14,113.48

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Solution

The fourth proportional to 18,027.40, 27,005.28 and 14,113.48 is: 21,142.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,027.40 : 27,005.28 = 14,113.48 : x
  2. Step 2: Convert to fraction form
    18,027.40/27,005.28 = 14,113.48/x
  3. Step 3: Cross multiply
    18,027.40x = 27,005.28 × 14,113.48
  4. Step 4: Simplify right side
    18,027.40x = 381,138,479.17
  5. Step 5: Solve for x
    x = 381,138,479.17/18,027.40
  6. Step 6: Final answer
    x = 21,142.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.