Home / 31,617.81-47,369.60-19,765.94

Finding the Fourth Proportional to 31,617.81, 47,369.60 and 19,765.94

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Solution

The fourth proportional to 31,617.81, 47,369.60 and 19,765.94 is: 29,613.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,617.81 : 47,369.60 = 19,765.94 : x
  2. Step 2: Convert to fraction form
    31,617.81/47,369.60 = 19,765.94/x
  3. Step 3: Cross multiply
    31,617.81x = 47,369.60 × 19,765.94
  4. Step 4: Simplify right side
    31,617.81x = 936,304,448.69
  5. Step 5: Solve for x
    x = 936,304,448.69/31,617.81
  6. Step 6: Final answer
    x = 29,613.20

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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.