Home / 39,895.36-55,060.32-23,128.96

Finding the Fourth Proportional to 39,895.36, 55,060.32 and 23,128.96

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Solution

The fourth proportional to 39,895.36, 55,060.32 and 23,128.96 is: 31,920.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,895.36 : 55,060.32 = 23,128.96 : x
  2. Step 2: Convert to fraction form
    39,895.36/55,060.32 = 23,128.96/x
  3. Step 3: Cross multiply
    39,895.36x = 55,060.32 × 23,128.96
  4. Step 4: Simplify right side
    39,895.36x = 1,273,487,938.87
  5. Step 5: Solve for x
    x = 1,273,487,938.87/39,895.36
  6. Step 6: Final answer
    x = 31,920.70

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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.