Home / 39,808.18-54,936.60-22,815.64

Finding the Fourth Proportional to 39,808.18, 54,936.60 and 22,815.64

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Solution

The fourth proportional to 39,808.18, 54,936.60 and 22,815.64 is: 31,486.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,808.18 : 54,936.60 = 22,815.64 : x
  2. Step 2: Convert to fraction form
    39,808.18/54,936.60 = 22,815.64/x
  3. Step 3: Cross multiply
    39,808.18x = 54,936.60 × 22,815.64
  4. Step 4: Simplify right side
    39,808.18x = 1,253,413,688.42
  5. Step 5: Solve for x
    x = 1,253,413,688.42/39,808.18
  6. Step 6: Final answer
    x = 31,486.33

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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.