Home / 28,814.18-39,781.73-22,087.13

Finding the Fourth Proportional to 28,814.18, 39,781.73 and 22,087.13

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Solution

The fourth proportional to 28,814.18, 39,781.73 and 22,087.13 is: 30,494.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,814.18 : 39,781.73 = 22,087.13 : x
  2. Step 2: Convert to fraction form
    28,814.18/39,781.73 = 22,087.13/x
  3. Step 3: Cross multiply
    28,814.18x = 39,781.73 × 22,087.13
  4. Step 4: Simplify right side
    28,814.18x = 878,664,131.70
  5. Step 5: Solve for x
    x = 878,664,131.70/28,814.18
  6. Step 6: Final answer
    x = 30,494.16

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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.