Home / 20,907.05-31,365.08-6,114.83

Finding the Fourth Proportional to 20,907.05, 31,365.08 and 6,114.83

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Solution

The fourth proportional to 20,907.05, 31,365.08 and 6,114.83 is: 9,173.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,907.05 : 31,365.08 = 6,114.83 : x
  2. Step 2: Convert to fraction form
    20,907.05/31,365.08 = 6,114.83/x
  3. Step 3: Cross multiply
    20,907.05x = 31,365.08 × 6,114.83
  4. Step 4: Simplify right side
    20,907.05x = 191,792,101.56
  5. Step 5: Solve for x
    x = 191,792,101.56/20,907.05
  6. Step 6: Final answer
    x = 9,173.56

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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.