Home / 31,105.24-46,595.70-21,220

Finding the Fourth Proportional to 31,105.24, 46,595.70 and 21,220

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Solution

The fourth proportional to 31,105.24, 46,595.70 and 21,220 is: 31,787.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,105.24 : 46,595.70 = 21,220 : x
  2. Step 2: Convert to fraction form
    31,105.24/46,595.70 = 21,220/x
  3. Step 3: Cross multiply
    31,105.24x = 46,595.70 × 21,220
  4. Step 4: Simplify right side
    31,105.24x = 988,760,754.00
  5. Step 5: Solve for x
    x = 988,760,754.00/31,105.24
  6. Step 6: Final answer
    x = 31,787.59

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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.