Home / 31,908.49-44,032.97-19,978.40

Finding the Fourth Proportional to 31,908.49, 44,032.97 and 19,978.40

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Solution

The fourth proportional to 31,908.49, 44,032.97 and 19,978.40 is: 27,569.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,908.49 : 44,032.97 = 19,978.40 : x
  2. Step 2: Convert to fraction form
    31,908.49/44,032.97 = 19,978.40/x
  3. Step 3: Cross multiply
    31,908.49x = 44,032.97 × 19,978.40
  4. Step 4: Simplify right side
    31,908.49x = 879,708,447.88
  5. Step 5: Solve for x
    x = 879,708,447.88/31,908.49
  6. Step 6: Final answer
    x = 27,569.73

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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.