Home / 28,779.12-43,168.68-27,154.80

Finding the Fourth Proportional to 28,779.12, 43,168.68 and 27,154.80

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Solution

The fourth proportional to 28,779.12, 43,168.68 and 27,154.80 is: 40,732.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.12 : 43,168.68 = 27,154.80 : x
  2. Step 2: Convert to fraction form
    28,779.12/43,168.68 = 27,154.80/x
  3. Step 3: Cross multiply
    28,779.12x = 43,168.68 × 27,154.80
  4. Step 4: Simplify right side
    28,779.12x = 1,172,236,871.66
  5. Step 5: Solve for x
    x = 1,172,236,871.66/28,779.12
  6. Step 6: Final answer
    x = 40,732.20

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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.