Home / 21,264.23-29,345.60-11,833.40

Finding the Fourth Proportional to 21,264.23, 29,345.60 and 11,833.40

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Solution

The fourth proportional to 21,264.23, 29,345.60 and 11,833.40 is: 16,330.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,264.23 : 29,345.60 = 11,833.40 : x
  2. Step 2: Convert to fraction form
    21,264.23/29,345.60 = 11,833.40/x
  3. Step 3: Cross multiply
    21,264.23x = 29,345.60 × 11,833.40
  4. Step 4: Simplify right side
    21,264.23x = 347,258,105.90
  5. Step 5: Solve for x
    x = 347,258,105.90/21,264.23
  6. Step 6: Final answer
    x = 16,330.63

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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.