Home / 39,923.87-55,095.34-22,019.57

Finding the Fourth Proportional to 39,923.87, 55,095.34 and 22,019.57

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Solution

The fourth proportional to 39,923.87, 55,095.34 and 22,019.57 is: 30,387.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,923.87 : 55,095.34 = 22,019.57 : x
  2. Step 2: Convert to fraction form
    39,923.87/55,095.34 = 22,019.57/x
  3. Step 3: Cross multiply
    39,923.87x = 55,095.34 × 22,019.57
  4. Step 4: Simplify right side
    39,923.87x = 1,213,175,420.33
  5. Step 5: Solve for x
    x = 1,213,175,420.33/39,923.87
  6. Step 6: Final answer
    x = 30,387.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.