Home / 21,434.33-29,548.94-15,759.06

Finding the Fourth Proportional to 21,434.33, 29,548.94 and 15,759.06

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Solution

The fourth proportional to 21,434.33, 29,548.94 and 15,759.06 is: 21,725.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,434.33 : 29,548.94 = 15,759.06 : x
  2. Step 2: Convert to fraction form
    21,434.33/29,548.94 = 15,759.06/x
  3. Step 3: Cross multiply
    21,434.33x = 29,548.94 × 15,759.06
  4. Step 4: Simplify right side
    21,434.33x = 465,663,439.60
  5. Step 5: Solve for x
    x = 465,663,439.60/21,434.33
  6. Step 6: Final answer
    x = 21,725.13

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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.