Home / 31,901.96-47,817.72-13,171.68

Finding the Fourth Proportional to 31,901.96, 47,817.72 and 13,171.68

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Solution

The fourth proportional to 31,901.96, 47,817.72 and 13,171.68 is: 19,742.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,901.96 : 47,817.72 = 13,171.68 : x
  2. Step 2: Convert to fraction form
    31,901.96/47,817.72 = 13,171.68/x
  3. Step 3: Cross multiply
    31,901.96x = 47,817.72 × 13,171.68
  4. Step 4: Simplify right side
    31,901.96x = 629,839,706.17
  5. Step 5: Solve for x
    x = 629,839,706.17/31,901.96
  6. Step 6: Final answer
    x = 19,742.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.