Home / 31,025.44-42,792.18-19,685.16

Finding the Fourth Proportional to 31,025.44, 42,792.18 and 19,685.16

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Solution

The fourth proportional to 31,025.44, 42,792.18 and 19,685.16 is: 27,150.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,025.44 : 42,792.18 = 19,685.16 : x
  2. Step 2: Convert to fraction form
    31,025.44/42,792.18 = 19,685.16/x
  3. Step 3: Cross multiply
    31,025.44x = 42,792.18 × 19,685.16
  4. Step 4: Simplify right side
    31,025.44x = 842,370,910.05
  5. Step 5: Solve for x
    x = 842,370,910.05/31,025.44
  6. Step 6: Final answer
    x = 27,150.97

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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.