Home / 28,077.80-42,105.96-9,354.24

Finding the Fourth Proportional to 28,077.80, 42,105.96 and 9,354.24

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Solution

The fourth proportional to 28,077.80, 42,105.96 and 9,354.24 is: 14,027.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077.80 : 42,105.96 = 9,354.24 : x
  2. Step 2: Convert to fraction form
    28,077.80/42,105.96 = 9,354.24/x
  3. Step 3: Cross multiply
    28,077.80x = 42,105.96 × 9,354.24
  4. Step 4: Simplify right side
    28,077.80x = 393,869,255.27
  5. Step 5: Solve for x
    x = 393,869,255.27/28,077.80
  6. Step 6: Final answer
    x = 14,027.78

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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.