Home / 27,280.96-40,855.72-18,489.24

Finding the Fourth Proportional to 27,280.96, 40,855.72 and 18,489.24

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Solution

The fourth proportional to 27,280.96, 40,855.72 and 18,489.24 is: 27,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,280.96 : 40,855.72 = 18,489.24 : x
  2. Step 2: Convert to fraction form
    27,280.96/40,855.72 = 18,489.24/x
  3. Step 3: Cross multiply
    27,280.96x = 40,855.72 × 18,489.24
  4. Step 4: Simplify right side
    27,280.96x = 755,391,212.45
  5. Step 5: Solve for x
    x = 755,391,212.45/27,280.96
  6. Step 6: Final answer
    x = 27,689.32

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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.