Home / 18,998.75-26,200.56-15,029.35

Finding the Fourth Proportional to 18,998.75, 26,200.56 and 15,029.35

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Solution

The fourth proportional to 18,998.75, 26,200.56 and 15,029.35 is: 20,726.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,998.75 : 26,200.56 = 15,029.35 : x
  2. Step 2: Convert to fraction form
    18,998.75/26,200.56 = 15,029.35/x
  3. Step 3: Cross multiply
    18,998.75x = 26,200.56 × 15,029.35
  4. Step 4: Simplify right side
    18,998.75x = 393,777,377.29
  5. Step 5: Solve for x
    x = 393,777,377.29/18,998.75
  6. Step 6: Final answer
    x = 20,726.49

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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.