Home / 21,181.43-29,260.79-16,926.92

Finding the Fourth Proportional to 21,181.43, 29,260.79 and 16,926.92

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Solution

The fourth proportional to 21,181.43, 29,260.79 and 16,926.92 is: 23,383.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181.43 : 29,260.79 = 16,926.92 : x
  2. Step 2: Convert to fraction form
    21,181.43/29,260.79 = 16,926.92/x
  3. Step 3: Cross multiply
    21,181.43x = 29,260.79 × 16,926.92
  4. Step 4: Simplify right side
    21,181.43x = 495,294,947.48
  5. Step 5: Solve for x
    x = 495,294,947.48/21,181.43
  6. Step 6: Final answer
    x = 23,383.45

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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.