Home / 39,886.93-55,043.97-21,737.53

Finding the Fourth Proportional to 39,886.93, 55,043.97 and 21,737.53

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Solution

The fourth proportional to 39,886.93, 55,043.97 and 21,737.53 is: 29,997.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,886.93 : 55,043.97 = 21,737.53 : x
  2. Step 2: Convert to fraction form
    39,886.93/55,043.97 = 21,737.53/x
  3. Step 3: Cross multiply
    39,886.93x = 55,043.97 × 21,737.53
  4. Step 4: Simplify right side
    39,886.93x = 1,196,519,949.19
  5. Step 5: Solve for x
    x = 1,196,519,949.19/39,886.93
  6. Step 6: Final answer
    x = 29,997.79

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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.