Home / 20,091.51-30,137.72-5,301.92

Finding the Fourth Proportional to 20,091.51, 30,137.72 and 5,301.92

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Solution

The fourth proportional to 20,091.51, 30,137.72 and 5,301.92 is: 7,952.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,091.51 : 30,137.72 = 5,301.92 : x
  2. Step 2: Convert to fraction form
    20,091.51/30,137.72 = 5,301.92/x
  3. Step 3: Cross multiply
    20,091.51x = 30,137.72 × 5,301.92
  4. Step 4: Simplify right side
    20,091.51x = 159,787,603.22
  5. Step 5: Solve for x
    x = 159,787,603.22/20,091.51
  6. Step 6: Final answer
    x = 7,952.99

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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.