Home / 31,971.10-47,952.45-9,786.70

Finding the Fourth Proportional to 31,971.10, 47,952.45 and 9,786.70

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Solution

The fourth proportional to 31,971.10, 47,952.45 and 9,786.70 is: 14,678.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,971.10 : 47,952.45 = 9,786.70 : x
  2. Step 2: Convert to fraction form
    31,971.10/47,952.45 = 9,786.70/x
  3. Step 3: Cross multiply
    31,971.10x = 47,952.45 × 9,786.70
  4. Step 4: Simplify right side
    31,971.10x = 469,296,242.42
  5. Step 5: Solve for x
    x = 469,296,242.42/31,971.10
  6. Step 6: Final answer
    x = 14,678.76

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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.