Home / 18,864.04-28,305.28-13,352.80

Finding the Fourth Proportional to 18,864.04, 28,305.28 and 13,352.80

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Solution

The fourth proportional to 18,864.04, 28,305.28 and 13,352.80 is: 20,035.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864.04 : 28,305.28 = 13,352.80 : x
  2. Step 2: Convert to fraction form
    18,864.04/28,305.28 = 13,352.80/x
  3. Step 3: Cross multiply
    18,864.04x = 28,305.28 × 13,352.80
  4. Step 4: Simplify right side
    18,864.04x = 377,954,742.78
  5. Step 5: Solve for x
    x = 377,954,742.78/18,864.04
  6. Step 6: Final answer
    x = 20,035.73

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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.