Home / 27,040.80-40,561.20-17,709.60

Finding the Fourth Proportional to 27,040.80, 40,561.20 and 17,709.60

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Solution

The fourth proportional to 27,040.80, 40,561.20 and 17,709.60 is: 26,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,040.80 : 40,561.20 = 17,709.60 : x
  2. Step 2: Convert to fraction form
    27,040.80/40,561.20 = 17,709.60/x
  3. Step 3: Cross multiply
    27,040.80x = 40,561.20 × 17,709.60
  4. Step 4: Simplify right side
    27,040.80x = 718,322,627.52
  5. Step 5: Solve for x
    x = 718,322,627.52/27,040.80
  6. Step 6: Final answer
    x = 26,564.40

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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.