Home / 39,960.77-55,142.87-22,965.05

Finding the Fourth Proportional to 39,960.77, 55,142.87 and 22,965.05

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Solution

The fourth proportional to 39,960.77, 55,142.87 and 22,965.05 is: 31,690.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,960.77 : 55,142.87 = 22,965.05 : x
  2. Step 2: Convert to fraction form
    39,960.77/55,142.87 = 22,965.05/x
  3. Step 3: Cross multiply
    39,960.77x = 55,142.87 × 22,965.05
  4. Step 4: Simplify right side
    39,960.77x = 1,266,358,789.73
  5. Step 5: Solve for x
    x = 1,266,358,789.73/39,960.77
  6. Step 6: Final answer
    x = 31,690.05

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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.