Home / 31,104.40-42,922.81-16,956.94

Finding the Fourth Proportional to 31,104.40, 42,922.81 and 16,956.94

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Solution

The fourth proportional to 31,104.40, 42,922.81 and 16,956.94 is: 23,399.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,104.40 : 42,922.81 = 16,956.94 : x
  2. Step 2: Convert to fraction form
    31,104.40/42,922.81 = 16,956.94/x
  3. Step 3: Cross multiply
    31,104.40x = 42,922.81 × 16,956.94
  4. Step 4: Simplify right side
    31,104.40x = 727,839,214.40
  5. Step 5: Solve for x
    x = 727,839,214.40/31,104.40
  6. Step 6: Final answer
    x = 23,399.88

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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.