Home / 39,963.78-55,153.24-22,970.79

Finding the Fourth Proportional to 39,963.78, 55,153.24 and 22,970.79

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Solution

The fourth proportional to 39,963.78, 55,153.24 and 22,970.79 is: 31,701.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,963.78 : 55,153.24 = 22,970.79 : x
  2. Step 2: Convert to fraction form
    39,963.78/55,153.24 = 22,970.79/x
  3. Step 3: Cross multiply
    39,963.78x = 55,153.24 × 22,970.79
  4. Step 4: Simplify right side
    39,963.78x = 1,266,913,436.43
  5. Step 5: Solve for x
    x = 1,266,913,436.43/39,963.78
  6. Step 6: Final answer
    x = 31,701.54

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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.