Home / 40,986.06-61,479.45-11,406.30

Finding the Fourth Proportional to 40,986.06, 61,479.45 and 11,406.30

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Solution

The fourth proportional to 40,986.06, 61,479.45 and 11,406.30 is: 17,109.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,986.06 : 61,479.45 = 11,406.30 : x
  2. Step 2: Convert to fraction form
    40,986.06/61,479.45 = 11,406.30/x
  3. Step 3: Cross multiply
    40,986.06x = 61,479.45 × 11,406.30
  4. Step 4: Simplify right side
    40,986.06x = 701,253,050.54
  5. Step 5: Solve for x
    x = 701,253,050.54/40,986.06
  6. Step 6: Final answer
    x = 17,109.55

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1.5x scale

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.