Home / 31,371.84-43,313.40-19,447.92

Finding the Fourth Proportional to 31,371.84, 43,313.40 and 19,447.92

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Solution

The fourth proportional to 31,371.84, 43,313.40 and 19,447.92 is: 26,850.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,371.84 : 43,313.40 = 19,447.92 : x
  2. Step 2: Convert to fraction form
    31,371.84/43,313.40 = 19,447.92/x
  3. Step 3: Cross multiply
    31,371.84x = 43,313.40 × 19,447.92
  4. Step 4: Simplify right side
    31,371.84x = 842,355,538.13
  5. Step 5: Solve for x
    x = 842,355,538.13/31,371.84
  6. Step 6: Final answer
    x = 26,850.69

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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.