Home / 21,324.60-29,432.04-12,833.64

Finding the Fourth Proportional to 21,324.60, 29,432.04 and 12,833.64

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Solution

The fourth proportional to 21,324.60, 29,432.04 and 12,833.64 is: 17,712.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,324.60 : 29,432.04 = 12,833.64 : x
  2. Step 2: Convert to fraction form
    21,324.60/29,432.04 = 12,833.64/x
  3. Step 3: Cross multiply
    21,324.60x = 29,432.04 × 12,833.64
  4. Step 4: Simplify right side
    21,324.60x = 377,720,205.83
  5. Step 5: Solve for x
    x = 377,720,205.83/21,324.60
  6. Step 6: Final answer
    x = 17,712.89

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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.