Home / 28,805.27-39,758.81-18,761.27

Finding the Fourth Proportional to 28,805.27, 39,758.81 and 18,761.27

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Solution

The fourth proportional to 28,805.27, 39,758.81 and 18,761.27 is: 25,895.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,805.27 : 39,758.81 = 18,761.27 : x
  2. Step 2: Convert to fraction form
    28,805.27/39,758.81 = 18,761.27/x
  3. Step 3: Cross multiply
    28,805.27x = 39,758.81 × 18,761.27
  4. Step 4: Simplify right side
    28,805.27x = 745,925,476.69
  5. Step 5: Solve for x
    x = 745,925,476.69/28,805.27
  6. Step 6: Final answer
    x = 25,895.46

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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.