Home / 39,913.18-55,077.36-22,007.80

Finding the Fourth Proportional to 39,913.18, 55,077.36 and 22,007.80

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Solution

The fourth proportional to 39,913.18, 55,077.36 and 22,007.80 is: 30,369.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,913.18 : 55,077.36 = 22,007.80 : x
  2. Step 2: Convert to fraction form
    39,913.18/55,077.36 = 22,007.80/x
  3. Step 3: Cross multiply
    39,913.18x = 55,077.36 × 22,007.80
  4. Step 4: Simplify right side
    39,913.18x = 1,212,131,578.43
  5. Step 5: Solve for x
    x = 1,212,131,578.43/39,913.18
  6. Step 6: Final answer
    x = 30,369.21

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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.