Home / 31,732.96-47,606.28-19,740

Finding the Fourth Proportional to 31,732.96, 47,606.28 and 19,740

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Solution

The fourth proportional to 31,732.96, 47,606.28 and 19,740 is: 29,614.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,732.96 : 47,606.28 = 19,740 : x
  2. Step 2: Convert to fraction form
    31,732.96/47,606.28 = 19,740/x
  3. Step 3: Cross multiply
    31,732.96x = 47,606.28 × 19,740
  4. Step 4: Simplify right side
    31,732.96x = 939,747,967.20
  5. Step 5: Solve for x
    x = 939,747,967.20/31,732.96
  6. Step 6: Final answer
    x = 29,614.25

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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.