Home / 21,260.84-29,340.24-11,829.38

Finding the Fourth Proportional to 21,260.84, 29,340.24 and 11,829.38

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Solution

The fourth proportional to 21,260.84, 29,340.24 and 11,829.38 is: 16,324.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.84 : 29,340.24 = 11,829.38 : x
  2. Step 2: Convert to fraction form
    21,260.84/29,340.24 = 11,829.38/x
  3. Step 3: Cross multiply
    21,260.84x = 29,340.24 × 11,829.38
  4. Step 4: Simplify right side
    21,260.84x = 347,076,848.25
  5. Step 5: Solve for x
    x = 347,076,848.25/21,260.84
  6. Step 6: Final answer
    x = 16,324.70

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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.