Home / 31,814.36-47,721.67-10,754.57

Finding the Fourth Proportional to 31,814.36, 47,721.67 and 10,754.57

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Solution

The fourth proportional to 31,814.36, 47,721.67 and 10,754.57 is: 16,131.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,814.36 : 47,721.67 = 10,754.57 : x
  2. Step 2: Convert to fraction form
    31,814.36/47,721.67 = 10,754.57/x
  3. Step 3: Cross multiply
    31,814.36x = 47,721.67 × 10,754.57
  4. Step 4: Simplify right side
    31,814.36x = 513,225,775.04
  5. Step 5: Solve for x
    x = 513,225,775.04/31,814.36
  6. Step 6: Final answer
    x = 16,131.89

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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.