Home / 27,152.80-40,729.20-17,821.60

Finding the Fourth Proportional to 27,152.80, 40,729.20 and 17,821.60

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Solution

The fourth proportional to 27,152.80, 40,729.20 and 17,821.60 is: 26,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,152.80 : 40,729.20 = 17,821.60 : x
  2. Step 2: Convert to fraction form
    27,152.80/40,729.20 = 17,821.60/x
  3. Step 3: Cross multiply
    27,152.80x = 40,729.20 × 17,821.60
  4. Step 4: Simplify right side
    27,152.80x = 725,859,510.72
  5. Step 5: Solve for x
    x = 725,859,510.72/27,152.80
  6. Step 6: Final answer
    x = 26,732.40

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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.