Home / 18,982.50-28,417.68-14,019.18

Finding the Fourth Proportional to 18,982.50, 28,417.68 and 14,019.18

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Solution

The fourth proportional to 18,982.50, 28,417.68 and 14,019.18 is: 20,987.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.50 : 28,417.68 = 14,019.18 : x
  2. Step 2: Convert to fraction form
    18,982.50/28,417.68 = 14,019.18/x
  3. Step 3: Cross multiply
    18,982.50x = 28,417.68 × 14,019.18
  4. Step 4: Simplify right side
    18,982.50x = 398,392,571.10
  5. Step 5: Solve for x
    x = 398,392,571.10/18,982.50
  6. Step 6: Final answer
    x = 20,987.36

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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.