Home / 21,877.20-32,816.26-7,838.14

Finding the Fourth Proportional to 21,877.20, 32,816.26 and 7,838.14

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Solution

The fourth proportional to 21,877.20, 32,816.26 and 7,838.14 is: 11,757.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,877.20 : 32,816.26 = 7,838.14 : x
  2. Step 2: Convert to fraction form
    21,877.20/32,816.26 = 7,838.14/x
  3. Step 3: Cross multiply
    21,877.20x = 32,816.26 × 7,838.14
  4. Step 4: Simplify right side
    21,877.20x = 257,218,440.16
  5. Step 5: Solve for x
    x = 257,218,440.16/21,877.20
  6. Step 6: Final answer
    x = 11,757.37

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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.