Home / 21,274.16-29,356.20-12,324.60

Finding the Fourth Proportional to 21,274.16, 29,356.20 and 12,324.60

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Solution

The fourth proportional to 21,274.16, 29,356.20 and 12,324.60 is: 17,006.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,274.16 : 29,356.20 = 12,324.60 : x
  2. Step 2: Convert to fraction form
    21,274.16/29,356.20 = 12,324.60/x
  3. Step 3: Cross multiply
    21,274.16x = 29,356.20 × 12,324.60
  4. Step 4: Simplify right side
    21,274.16x = 361,803,422.52
  5. Step 5: Solve for x
    x = 361,803,422.52/21,274.16
  6. Step 6: Final answer
    x = 17,006.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.