Home / 20,454.37-30,663.36-7,971.48

Finding the Fourth Proportional to 20,454.37, 30,663.36 and 7,971.48

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Solution

The fourth proportional to 20,454.37, 30,663.36 and 7,971.48 is: 11,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,454.37 : 30,663.36 = 7,971.48 : x
  2. Step 2: Convert to fraction form
    20,454.37/30,663.36 = 7,971.48/x
  3. Step 3: Cross multiply
    20,454.37x = 30,663.36 × 7,971.48
  4. Step 4: Simplify right side
    20,454.37x = 244,432,360.97
  5. Step 5: Solve for x
    x = 244,432,360.97/20,454.37
  6. Step 6: Final answer
    x = 11,950.13

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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.