Home / 31,727.92-43,772.93-18,981.46

Finding the Fourth Proportional to 31,727.92, 43,772.93 and 18,981.46

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Solution

The fourth proportional to 31,727.92, 43,772.93 and 18,981.46 is: 26,187.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,727.92 : 43,772.93 = 18,981.46 : x
  2. Step 2: Convert to fraction form
    31,727.92/43,772.93 = 18,981.46/x
  3. Step 3: Cross multiply
    31,727.92x = 43,772.93 × 18,981.46
  4. Step 4: Simplify right side
    31,727.92x = 830,874,119.88
  5. Step 5: Solve for x
    x = 830,874,119.88/31,727.92
  6. Step 6: Final answer
    x = 26,187.48

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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.