Home / 31,486.75-47,215.89-9,292.33

Finding the Fourth Proportional to 31,486.75, 47,215.89 and 9,292.33

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Solution

The fourth proportional to 31,486.75, 47,215.89 and 9,292.33 is: 13,934.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,486.75 : 47,215.89 = 9,292.33 : x
  2. Step 2: Convert to fraction form
    31,486.75/47,215.89 = 9,292.33/x
  3. Step 3: Cross multiply
    31,486.75x = 47,215.89 × 9,292.33
  4. Step 4: Simplify right side
    31,486.75x = 438,745,631.12
  5. Step 5: Solve for x
    x = 438,745,631.12/31,486.75
  6. Step 6: Final answer
    x = 13,934.29

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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.