Home / 28,779.02-43,157.19-13,983.56

Finding the Fourth Proportional to 28,779.02, 43,157.19 and 13,983.56

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Solution

The fourth proportional to 28,779.02, 43,157.19 and 13,983.56 is: 20,969.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.02 : 43,157.19 = 13,983.56 : x
  2. Step 2: Convert to fraction form
    28,779.02/43,157.19 = 13,983.56/x
  3. Step 3: Cross multiply
    28,779.02x = 43,157.19 × 13,983.56
  4. Step 4: Simplify right side
    28,779.02x = 603,491,155.80
  5. Step 5: Solve for x
    x = 603,491,155.80/28,779.02
  6. Step 6: Final answer
    x = 20,969.83

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Similar ratio
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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.