Home / 20,161.86-30,235.05-7,010.70

Finding the Fourth Proportional to 20,161.86, 30,235.05 and 7,010.70

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Solution

The fourth proportional to 20,161.86, 30,235.05 and 7,010.70 is: 10,513.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,161.86 : 30,235.05 = 7,010.70 : x
  2. Step 2: Convert to fraction form
    20,161.86/30,235.05 = 7,010.70/x
  3. Step 3: Cross multiply
    20,161.86x = 30,235.05 × 7,010.70
  4. Step 4: Simplify right side
    20,161.86x = 211,968,865.04
  5. Step 5: Solve for x
    x = 211,968,865.04/20,161.86
  6. Step 6: Final answer
    x = 10,513.36

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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.