Home / 28,718.80-43,060.56-11,168.18

Finding the Fourth Proportional to 28,718.80, 43,060.56 and 11,168.18

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Solution

The fourth proportional to 28,718.80, 43,060.56 and 11,168.18 is: 16,745.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,718.80 : 43,060.56 = 11,168.18 : x
  2. Step 2: Convert to fraction form
    28,718.80/43,060.56 = 11,168.18/x
  3. Step 3: Cross multiply
    28,718.80x = 43,060.56 × 11,168.18
  4. Step 4: Simplify right side
    28,718.80x = 480,908,084.98
  5. Step 5: Solve for x
    x = 480,908,084.98/28,718.80
  6. Step 6: Final answer
    x = 16,745.41

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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.