Home / 28,806.99-43,112.91-17,720.70

Finding the Fourth Proportional to 28,806.99, 43,112.91 and 17,720.70

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Solution

The fourth proportional to 28,806.99, 43,112.91 and 17,720.70 is: 26,521.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.99 : 43,112.91 = 17,720.70 : x
  2. Step 2: Convert to fraction form
    28,806.99/43,112.91 = 17,720.70/x
  3. Step 3: Cross multiply
    28,806.99x = 43,112.91 × 17,720.70
  4. Step 4: Simplify right side
    28,806.99x = 763,990,944.24
  5. Step 5: Solve for x
    x = 763,990,944.24/28,806.99
  6. Step 6: Final answer
    x = 26,521.03

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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.