Home / 18,019.40-26,993.28-14,105.48

Finding the Fourth Proportional to 18,019.40, 26,993.28 and 14,105.48

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Solution

The fourth proportional to 18,019.40, 26,993.28 and 14,105.48 is: 21,130.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,019.40 : 26,993.28 = 14,105.48 : x
  2. Step 2: Convert to fraction form
    18,019.40/26,993.28 = 14,105.48/x
  3. Step 3: Cross multiply
    18,019.40x = 26,993.28 × 14,105.48
  4. Step 4: Simplify right side
    18,019.40x = 380,753,171.17
  5. Step 5: Solve for x
    x = 380,753,171.17/18,019.40
  6. Step 6: Final answer
    x = 21,130.18

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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.