Home / 31,219.32-43,099.34-21,024.97

Finding the Fourth Proportional to 31,219.32, 43,099.34 and 21,024.97

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Solution

The fourth proportional to 31,219.32, 43,099.34 and 21,024.97 is: 29,025.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,219.32 : 43,099.34 = 21,024.97 : x
  2. Step 2: Convert to fraction form
    31,219.32/43,099.34 = 21,024.97/x
  3. Step 3: Cross multiply
    31,219.32x = 43,099.34 × 21,024.97
  4. Step 4: Simplify right side
    31,219.32x = 906,162,235.91
  5. Step 5: Solve for x
    x = 906,162,235.91/31,219.32
  6. Step 6: Final answer
    x = 29,025.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.