Home / 39,774.60-54,832.40-31,636.92

Finding the Fourth Proportional to 39,774.60, 54,832.40 and 31,636.92

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Solution

The fourth proportional to 39,774.60, 54,832.40 and 31,636.92 is: 43,613.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,774.60 : 54,832.40 = 31,636.92 : x
  2. Step 2: Convert to fraction form
    39,774.60/54,832.40 = 31,636.92/x
  3. Step 3: Cross multiply
    39,774.60x = 54,832.40 × 31,636.92
  4. Step 4: Simplify right side
    39,774.60x = 1,734,728,252.21
  5. Step 5: Solve for x
    x = 1,734,728,252.21/39,774.60
  6. Step 6: Final answer
    x = 43,613.97

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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.