Home / 20,739.20-31,108.75-16,559.62

Finding the Fourth Proportional to 20,739.20, 31,108.75 and 16,559.62

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Solution

The fourth proportional to 20,739.20, 31,108.75 and 16,559.62 is: 24,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739.20 : 31,108.75 = 16,559.62 : x
  2. Step 2: Convert to fraction form
    20,739.20/31,108.75 = 16,559.62/x
  3. Step 3: Cross multiply
    20,739.20x = 31,108.75 × 16,559.62
  4. Step 4: Simplify right side
    20,739.20x = 515,148,959.50
  5. Step 5: Solve for x
    x = 515,148,959.50/20,739.20
  6. Step 6: Final answer
    x = 24,839.39

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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.