Home / 21,755.16-32,622.66-6,960.78

Finding the Fourth Proportional to 21,755.16, 32,622.66 and 6,960.78

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Solution

The fourth proportional to 21,755.16, 32,622.66 and 6,960.78 is: 10,437.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,755.16 : 32,622.66 = 6,960.78 : x
  2. Step 2: Convert to fraction form
    21,755.16/32,622.66 = 6,960.78/x
  3. Step 3: Cross multiply
    21,755.16x = 32,622.66 × 6,960.78
  4. Step 4: Simplify right side
    21,755.16x = 227,079,159.27
  5. Step 5: Solve for x
    x = 227,079,159.27/21,755.16
  6. Step 6: Final answer
    x = 10,437.94

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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.