Home / 21,104.46-31,640.28-10,569.07

Finding the Fourth Proportional to 21,104.46, 31,640.28 and 10,569.07

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Solution

The fourth proportional to 21,104.46, 31,640.28 and 10,569.07 is: 15,845.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,104.46 : 31,640.28 = 10,569.07 : x
  2. Step 2: Convert to fraction form
    21,104.46/31,640.28 = 10,569.07/x
  3. Step 3: Cross multiply
    21,104.46x = 31,640.28 × 10,569.07
  4. Step 4: Simplify right side
    21,104.46x = 334,408,334.14
  5. Step 5: Solve for x
    x = 334,408,334.14/21,104.46
  6. Step 6: Final answer
    x = 15,845.39

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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.