Home / 32,780.04-45,229.68-20,839.02

Finding the Fourth Proportional to 32,780.04, 45,229.68 and 20,839.02

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Solution

The fourth proportional to 32,780.04, 45,229.68 and 20,839.02 is: 28,753.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,780.04 : 45,229.68 = 20,839.02 : x
  2. Step 2: Convert to fraction form
    32,780.04/45,229.68 = 20,839.02/x
  3. Step 3: Cross multiply
    32,780.04x = 45,229.68 × 20,839.02
  4. Step 4: Simplify right side
    32,780.04x = 942,542,206.11
  5. Step 5: Solve for x
    x = 942,542,206.11/32,780.04
  6. Step 6: Final answer
    x = 28,753.54

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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.