Home / 31,125.87-42,902.49-22,054.28

Finding the Fourth Proportional to 31,125.87, 42,902.49 and 22,054.28

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Solution

The fourth proportional to 31,125.87, 42,902.49 and 22,054.28 is: 30,398.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,125.87 : 42,902.49 = 22,054.28 : x
  2. Step 2: Convert to fraction form
    31,125.87/42,902.49 = 22,054.28/x
  3. Step 3: Cross multiply
    31,125.87x = 42,902.49 × 22,054.28
  4. Step 4: Simplify right side
    31,125.87x = 946,183,209.27
  5. Step 5: Solve for x
    x = 946,183,209.27/31,125.87
  6. Step 6: Final answer
    x = 30,398.61

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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.