Home / 28,779.24-43,143.28-11,245.08

Finding the Fourth Proportional to 28,779.24, 43,143.28 and 11,245.08

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Solution

The fourth proportional to 28,779.24, 43,143.28 and 11,245.08 is: 16,857.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.24 : 43,143.28 = 11,245.08 : x
  2. Step 2: Convert to fraction form
    28,779.24/43,143.28 = 11,245.08/x
  3. Step 3: Cross multiply
    28,779.24x = 43,143.28 × 11,245.08
  4. Step 4: Simplify right side
    28,779.24x = 485,149,635.06
  5. Step 5: Solve for x
    x = 485,149,635.06/28,779.24
  6. Step 6: Final answer
    x = 16,857.62

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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.