Home / 20,710.23-31,046.72-7,553.40

Finding the Fourth Proportional to 20,710.23, 31,046.72 and 7,553.40

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Solution

The fourth proportional to 20,710.23, 31,046.72 and 7,553.40 is: 11,323.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,710.23 : 31,046.72 = 7,553.40 : x
  2. Step 2: Convert to fraction form
    20,710.23/31,046.72 = 7,553.40/x
  3. Step 3: Cross multiply
    20,710.23x = 31,046.72 × 7,553.40
  4. Step 4: Simplify right side
    20,710.23x = 234,508,363.02
  5. Step 5: Solve for x
    x = 234,508,363.02/20,710.23
  6. Step 6: Final answer
    x = 11,323.31

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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.