Home / 31,765.36-43,838.28-17,619.76

Finding the Fourth Proportional to 31,765.36, 43,838.28 and 17,619.76

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Solution

The fourth proportional to 31,765.36, 43,838.28 and 17,619.76 is: 24,316.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,765.36 : 43,838.28 = 17,619.76 : x
  2. Step 2: Convert to fraction form
    31,765.36/43,838.28 = 17,619.76/x
  3. Step 3: Cross multiply
    31,765.36x = 43,838.28 × 17,619.76
  4. Step 4: Simplify right side
    31,765.36x = 772,419,972.41
  5. Step 5: Solve for x
    x = 772,419,972.41/31,765.36
  6. Step 6: Final answer
    x = 24,316.42

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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.