Home / 28,079.75-38,755.71-25,838.07

Finding the Fourth Proportional to 28,079.75, 38,755.71 and 25,838.07

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Solution

The fourth proportional to 28,079.75, 38,755.71 and 25,838.07 is: 35,661.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,079.75 : 38,755.71 = 25,838.07 : x
  2. Step 2: Convert to fraction form
    28,079.75/38,755.71 = 25,838.07/x
  3. Step 3: Cross multiply
    28,079.75x = 38,755.71 × 25,838.07
  4. Step 4: Simplify right side
    28,079.75x = 1,001,372,747.88
  5. Step 5: Solve for x
    x = 1,001,372,747.88/28,079.75
  6. Step 6: Final answer
    x = 35,661.75

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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.