Home / 31,410.70-47,108.75-9,218.12

Finding the Fourth Proportional to 31,410.70, 47,108.75 and 9,218.12

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Solution

The fourth proportional to 31,410.70, 47,108.75 and 9,218.12 is: 13,825.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,410.70 : 47,108.75 = 9,218.12 : x
  2. Step 2: Convert to fraction form
    31,410.70/47,108.75 = 9,218.12/x
  3. Step 3: Cross multiply
    31,410.70x = 47,108.75 × 9,218.12
  4. Step 4: Simplify right side
    31,410.70x = 434,253,828.92
  5. Step 5: Solve for x
    x = 434,253,828.92/31,410.70
  6. Step 6: Final answer
    x = 13,825.03

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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.