Home / 20,652.50-30,979.91-5,860.25

Finding the Fourth Proportional to 20,652.50, 30,979.91 and 5,860.25

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Solution

The fourth proportional to 20,652.50, 30,979.91 and 5,860.25 is: 8,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,652.50 : 30,979.91 = 5,860.25 : x
  2. Step 2: Convert to fraction form
    20,652.50/30,979.91 = 5,860.25/x
  3. Step 3: Cross multiply
    20,652.50x = 30,979.91 × 5,860.25
  4. Step 4: Simplify right side
    20,652.50x = 181,549,833.38
  5. Step 5: Solve for x
    x = 181,549,833.38/20,652.50
  6. Step 6: Final answer
    x = 8,790.70

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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.