Home / 28,749.56-43,105.87-18,877.30

Finding the Fourth Proportional to 28,749.56, 43,105.87 and 18,877.30

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Solution

The fourth proportional to 28,749.56, 43,105.87 and 18,877.30 is: 28,303.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,749.56 : 43,105.87 = 18,877.30 : x
  2. Step 2: Convert to fraction form
    28,749.56/43,105.87 = 18,877.30/x
  3. Step 3: Cross multiply
    28,749.56x = 43,105.87 × 18,877.30
  4. Step 4: Simplify right side
    28,749.56x = 813,722,598.05
  5. Step 5: Solve for x
    x = 813,722,598.05/28,749.56
  6. Step 6: Final answer
    x = 28,303.83

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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.