Home / 28,781.20-43,182.60-11,263.60

Finding the Fourth Proportional to 28,781.20, 43,182.60 and 11,263.60

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Solution

The fourth proportional to 28,781.20, 43,182.60 and 11,263.60 is: 16,899.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,781.20 : 43,182.60 = 11,263.60 : x
  2. Step 2: Convert to fraction form
    28,781.20/43,182.60 = 11,263.60/x
  3. Step 3: Cross multiply
    28,781.20x = 43,182.60 × 11,263.60
  4. Step 4: Simplify right side
    28,781.20x = 486,391,533.36
  5. Step 5: Solve for x
    x = 486,391,533.36/28,781.20
  6. Step 6: Final answer
    x = 16,899.63

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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.