Home / 18,280.60-27,399.30-13,658.20

Finding the Fourth Proportional to 18,280.60, 27,399.30 and 13,658.20

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Solution

The fourth proportional to 18,280.60, 27,399.30 and 13,658.20 is: 20,471.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,280.60 : 27,399.30 = 13,658.20 : x
  2. Step 2: Convert to fraction form
    18,280.60/27,399.30 = 13,658.20/x
  3. Step 3: Cross multiply
    18,280.60x = 27,399.30 × 13,658.20
  4. Step 4: Simplify right side
    18,280.60x = 374,225,119.26
  5. Step 5: Solve for x
    x = 374,225,119.26/18,280.60
  6. Step 6: Final answer
    x = 20,471.16

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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.