Home / 28,582.20-39,402.31-20,057.92

Finding the Fourth Proportional to 28,582.20, 39,402.31 and 20,057.92

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Solution

The fourth proportional to 28,582.20, 39,402.31 and 20,057.92 is: 27,651.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,582.20 : 39,402.31 = 20,057.92 : x
  2. Step 2: Convert to fraction form
    28,582.20/39,402.31 = 20,057.92/x
  3. Step 3: Cross multiply
    28,582.20x = 39,402.31 × 20,057.92
  4. Step 4: Simplify right side
    28,582.20x = 790,328,381.80
  5. Step 5: Solve for x
    x = 790,328,381.80/28,582.20
  6. Step 6: Final answer
    x = 27,651.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.