Home / 21,812.40-32,669.37-10,101

Finding the Fourth Proportional to 21,812.40, 32,669.37 and 10,101

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Solution

The fourth proportional to 21,812.40, 32,669.37 and 10,101 is: 15,128.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,812.40 : 32,669.37 = 10,101 : x
  2. Step 2: Convert to fraction form
    21,812.40/32,669.37 = 10,101/x
  3. Step 3: Cross multiply
    21,812.40x = 32,669.37 × 10,101
  4. Step 4: Simplify right side
    21,812.40x = 329,993,306.37
  5. Step 5: Solve for x
    x = 329,993,306.37/21,812.40
  6. Step 6: Final answer
    x = 15,128.70

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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.