Home / 39,941.78-55,122.32-22,951.55

Finding the Fourth Proportional to 39,941.78, 55,122.32 and 22,951.55

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Solution

The fourth proportional to 39,941.78, 55,122.32 and 22,951.55 is: 31,674.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,941.78 : 55,122.32 = 22,951.55 : x
  2. Step 2: Convert to fraction form
    39,941.78/55,122.32 = 22,951.55/x
  3. Step 3: Cross multiply
    39,941.78x = 55,122.32 × 22,951.55
  4. Step 4: Simplify right side
    39,941.78x = 1,265,142,878.78
  5. Step 5: Solve for x
    x = 1,265,142,878.78/39,941.78
  6. Step 6: Final answer
    x = 31,674.68

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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.