Home / 21,292.22-31,916.72-10,182.62

Finding the Fourth Proportional to 21,292.22, 31,916.72 and 10,182.62

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Solution

The fourth proportional to 21,292.22, 31,916.72 and 10,182.62 is: 15,263.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,292.22 : 31,916.72 = 10,182.62 : x
  2. Step 2: Convert to fraction form
    21,292.22/31,916.72 = 10,182.62/x
  3. Step 3: Cross multiply
    21,292.22x = 31,916.72 × 10,182.62
  4. Step 4: Simplify right side
    21,292.22x = 324,995,831.41
  5. Step 5: Solve for x
    x = 324,995,831.41/21,292.22
  6. Step 6: Final answer
    x = 15,263.60

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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.