Home / 28,803.05-39,755.18-19,243.43

Finding the Fourth Proportional to 28,803.05, 39,755.18 and 19,243.43

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Solution

The fourth proportional to 28,803.05, 39,755.18 and 19,243.43 is: 26,560.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,803.05 : 39,755.18 = 19,243.43 : x
  2. Step 2: Convert to fraction form
    28,803.05/39,755.18 = 19,243.43/x
  3. Step 3: Cross multiply
    28,803.05x = 39,755.18 × 19,243.43
  4. Step 4: Simplify right side
    28,803.05x = 765,026,023.47
  5. Step 5: Solve for x
    x = 765,026,023.47/28,803.05
  6. Step 6: Final answer
    x = 26,560.59

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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.