Home / 20,091.19-30,097.90-15,451.51

Finding the Fourth Proportional to 20,091.19, 30,097.90 and 15,451.51

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Solution

The fourth proportional to 20,091.19, 30,097.90 and 15,451.51 is: 23,147.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.19 : 30,097.90 = 15,451.51 : x
  2. Step 2: Convert to fraction form
    20,091.19/30,097.90 = 15,451.51/x
  3. Step 3: Cross multiply
    20,091.19x = 30,097.90 × 15,451.51
  4. Step 4: Simplify right side
    20,091.19x = 465,058,002.83
  5. Step 5: Solve for x
    x = 465,058,002.83/20,091.19
  6. Step 6: Final answer
    x = 23,147.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.