Home / 31,399.03-47,105.06-9,213.13

Finding the Fourth Proportional to 31,399.03, 47,105.06 and 9,213.13

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Solution

The fourth proportional to 31,399.03, 47,105.06 and 9,213.13 is: 13,821.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.03 : 47,105.06 = 9,213.13 : x
  2. Step 2: Convert to fraction form
    31,399.03/47,105.06 = 9,213.13/x
  3. Step 3: Cross multiply
    31,399.03x = 47,105.06 × 9,213.13
  4. Step 4: Simplify right side
    31,399.03x = 433,984,995.37
  5. Step 5: Solve for x
    x = 433,984,995.37/31,399.03
  6. Step 6: Final answer
    x = 13,821.61

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1.5x scale

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.