Home / 28,515.62-39,341.79-17,180.82

Finding the Fourth Proportional to 28,515.62, 39,341.79 and 17,180.82

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Solution

The fourth proportional to 28,515.62, 39,341.79 and 17,180.82 is: 23,703.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,515.62 : 39,341.79 = 17,180.82 : x
  2. Step 2: Convert to fraction form
    28,515.62/39,341.79 = 17,180.82/x
  3. Step 3: Cross multiply
    28,515.62x = 39,341.79 × 17,180.82
  4. Step 4: Simplify right side
    28,515.62x = 675,924,212.47
  5. Step 5: Solve for x
    x = 675,924,212.47/28,515.62
  6. Step 6: Final answer
    x = 23,703.65

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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.