Home / 40,789.57-56,335.22-28,081.75

Finding the Fourth Proportional to 40,789.57, 56,335.22 and 28,081.75

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Solution

The fourth proportional to 40,789.57, 56,335.22 and 28,081.75 is: 38,784.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,789.57 : 56,335.22 = 28,081.75 : x
  2. Step 2: Convert to fraction form
    40,789.57/56,335.22 = 28,081.75/x
  3. Step 3: Cross multiply
    40,789.57x = 56,335.22 × 28,081.75
  4. Step 4: Simplify right side
    40,789.57x = 1,581,991,564.24
  5. Step 5: Solve for x
    x = 1,581,991,564.24/40,789.57
  6. Step 6: Final answer
    x = 38,784.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.