Home / 40,886.30-61,329.40-12,808.54

Finding the Fourth Proportional to 40,886.30, 61,329.40 and 12,808.54

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Solution

The fourth proportional to 40,886.30, 61,329.40 and 12,808.54 is: 19,212.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,886.30 : 61,329.40 = 12,808.54 : x
  2. Step 2: Convert to fraction form
    40,886.30/61,329.40 = 12,808.54/x
  3. Step 3: Cross multiply
    40,886.30x = 61,329.40 × 12,808.54
  4. Step 4: Simplify right side
    40,886.30x = 785,540,057.07
  5. Step 5: Solve for x
    x = 785,540,057.07/40,886.30
  6. Step 6: Final answer
    x = 19,212.79

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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.