Home / 28,029.25-38,680.67-15,282.33

Finding the Fourth Proportional to 28,029.25, 38,680.67 and 15,282.33

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Solution

The fourth proportional to 28,029.25, 38,680.67 and 15,282.33 is: 21,089.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,029.25 : 38,680.67 = 15,282.33 : x
  2. Step 2: Convert to fraction form
    28,029.25/38,680.67 = 15,282.33/x
  3. Step 3: Cross multiply
    28,029.25x = 38,680.67 × 15,282.33
  4. Step 4: Simplify right side
    28,029.25x = 591,130,677.00
  5. Step 5: Solve for x
    x = 591,130,677.00/28,029.25
  6. Step 6: Final answer
    x = 21,089.78

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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.