Home / 28,806.18-39,759.93-18,759.66

Finding the Fourth Proportional to 28,806.18, 39,759.93 and 18,759.66

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Solution

The fourth proportional to 28,806.18, 39,759.93 and 18,759.66 is: 25,893.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,806.18 : 39,759.93 = 18,759.66 : x
  2. Step 2: Convert to fraction form
    28,806.18/39,759.93 = 18,759.66/x
  3. Step 3: Cross multiply
    28,806.18x = 39,759.93 × 18,759.66
  4. Step 4: Simplify right side
    28,806.18x = 745,882,768.42
  5. Step 5: Solve for x
    x = 745,882,768.42/28,806.18
  6. Step 6: Final answer
    x = 25,893.15

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1.5x scale

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.