Home / 31,852.78-47,781.40-9,667.96

Finding the Fourth Proportional to 31,852.78, 47,781.40 and 9,667.96

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Solution

The fourth proportional to 31,852.78, 47,781.40 and 9,667.96 is: 14,502.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,852.78 : 47,781.40 = 9,667.96 : x
  2. Step 2: Convert to fraction form
    31,852.78/47,781.40 = 9,667.96/x
  3. Step 3: Cross multiply
    31,852.78x = 47,781.40 × 9,667.96
  4. Step 4: Simplify right side
    31,852.78x = 461,948,663.94
  5. Step 5: Solve for x
    x = 461,948,663.94/31,852.78
  6. Step 6: Final answer
    x = 14,502.62

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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.