Home / 20,788.65-31,182.77-5,997.65

Finding the Fourth Proportional to 20,788.65, 31,182.77 and 5,997.65

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Solution

The fourth proportional to 20,788.65, 31,182.77 and 5,997.65 is: 8,996.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,788.65 : 31,182.77 = 5,997.65 : x
  2. Step 2: Convert to fraction form
    20,788.65/31,182.77 = 5,997.65/x
  3. Step 3: Cross multiply
    20,788.65x = 31,182.77 × 5,997.65
  4. Step 4: Simplify right side
    20,788.65x = 187,023,199.57
  5. Step 5: Solve for x
    x = 187,023,199.57/20,788.65
  6. Step 6: Final answer
    x = 8,996.41

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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.