Home / 21,124.26-29,102.49-17,581.32

Finding the Fourth Proportional to 21,124.26, 29,102.49 and 17,581.32

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Solution

The fourth proportional to 21,124.26, 29,102.49 and 17,581.32 is: 24,221.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,124.26 : 29,102.49 = 17,581.32 : x
  2. Step 2: Convert to fraction form
    21,124.26/29,102.49 = 17,581.32/x
  3. Step 3: Cross multiply
    21,124.26x = 29,102.49 × 17,581.32
  4. Step 4: Simplify right side
    21,124.26x = 511,660,189.49
  5. Step 5: Solve for x
    x = 511,660,189.49/21,124.26
  6. Step 6: Final answer
    x = 24,221.45

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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.