Home / 31,187.73-43,035.75-18,441.41

Finding the Fourth Proportional to 31,187.73, 43,035.75 and 18,441.41

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Solution

The fourth proportional to 31,187.73, 43,035.75 and 18,441.41 is: 25,447.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,187.73 : 43,035.75 = 18,441.41 : x
  2. Step 2: Convert to fraction form
    31,187.73/43,035.75 = 18,441.41/x
  3. Step 3: Cross multiply
    31,187.73x = 43,035.75 × 18,441.41
  4. Step 4: Simplify right side
    31,187.73x = 793,639,695.23
  5. Step 5: Solve for x
    x = 793,639,695.23/31,187.73
  6. Step 6: Final answer
    x = 25,447.18

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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.