Home / 21,100.48-31,632.49-10,001.50

Finding the Fourth Proportional to 21,100.48, 31,632.49 and 10,001.50

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Solution

The fourth proportional to 21,100.48, 31,632.49 and 10,001.50 is: 14,993.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,100.48 : 31,632.49 = 10,001.50 : x
  2. Step 2: Convert to fraction form
    21,100.48/31,632.49 = 10,001.50/x
  3. Step 3: Cross multiply
    21,100.48x = 31,632.49 × 10,001.50
  4. Step 4: Simplify right side
    21,100.48x = 316,372,348.74
  5. Step 5: Solve for x
    x = 316,372,348.74/21,100.48
  6. Step 6: Final answer
    x = 14,993.61

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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.