Home / 31,501.97-43,432.37-25,815.77

Finding the Fourth Proportional to 31,501.97, 43,432.37 and 25,815.77

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Solution

The fourth proportional to 31,501.97, 43,432.37 and 25,815.77 is: 35,592.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,501.97 : 43,432.37 = 25,815.77 : x
  2. Step 2: Convert to fraction form
    31,501.97/43,432.37 = 25,815.77/x
  3. Step 3: Cross multiply
    31,501.97x = 43,432.37 × 25,815.77
  4. Step 4: Simplify right side
    31,501.97x = 1,121,239,945.40
  5. Step 5: Solve for x
    x = 1,121,239,945.40/31,501.97
  6. Step 6: Final answer
    x = 35,592.69

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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.