Home / 27,078.80-40,619.40-9,548.78

Finding the Fourth Proportional to 27,078.80, 40,619.40 and 9,548.78

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Solution

The fourth proportional to 27,078.80, 40,619.40 and 9,548.78 is: 14,323.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,078.80 : 40,619.40 = 9,548.78 : x
  2. Step 2: Convert to fraction form
    27,078.80/40,619.40 = 9,548.78/x
  3. Step 3: Cross multiply
    27,078.80x = 40,619.40 × 9,548.78
  4. Step 4: Simplify right side
    27,078.80x = 387,865,714.33
  5. Step 5: Solve for x
    x = 387,865,714.33/27,078.80
  6. Step 6: Final answer
    x = 14,323.59

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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.