Home / 28,821.75-39,806.82-19,373.91

Finding the Fourth Proportional to 28,821.75, 39,806.82 and 19,373.91

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Solution

The fourth proportional to 28,821.75, 39,806.82 and 19,373.91 is: 26,758.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,821.75 : 39,806.82 = 19,373.91 : x
  2. Step 2: Convert to fraction form
    28,821.75/39,806.82 = 19,373.91/x
  3. Step 3: Cross multiply
    28,821.75x = 39,806.82 × 19,373.91
  4. Step 4: Simplify right side
    28,821.75x = 771,213,748.07
  5. Step 5: Solve for x
    x = 771,213,748.07/28,821.75
  6. Step 6: Final answer
    x = 26,758.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.