Home / 28,808-43,114.40-17,721.70

Finding the Fourth Proportional to 28,808, 43,114.40 and 17,721.70

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Solution

The fourth proportional to 28,808, 43,114.40 and 17,721.70 is: 26,522.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,808 : 43,114.40 = 17,721.70 : x
  2. Step 2: Convert to fraction form
    28,808/43,114.40 = 17,721.70/x
  3. Step 3: Cross multiply
    28,808x = 43,114.40 × 17,721.70
  4. Step 4: Simplify right side
    28,808x = 764,060,462.48
  5. Step 5: Solve for x
    x = 764,060,462.48/28,808
  6. Step 6: Final answer
    x = 26,522.51

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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.