Home / 20,088.82-30,140.46-6,942.52

Finding the Fourth Proportional to 20,088.82, 30,140.46 and 6,942.52

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Solution

The fourth proportional to 20,088.82, 30,140.46 and 6,942.52 is: 10,416.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,088.82 : 30,140.46 = 6,942.52 : x
  2. Step 2: Convert to fraction form
    20,088.82/30,140.46 = 6,942.52/x
  3. Step 3: Cross multiply
    20,088.82x = 30,140.46 × 6,942.52
  4. Step 4: Simplify right side
    20,088.82x = 209,250,746.36
  5. Step 5: Solve for x
    x = 209,250,746.36/20,088.82
  6. Step 6: Final answer
    x = 10,416.28

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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.