Home / 21,321.26-29,388.06-19,534.46

Finding the Fourth Proportional to 21,321.26, 29,388.06 and 19,534.46

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Solution

The fourth proportional to 21,321.26, 29,388.06 and 19,534.46 is: 26,925.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,321.26 : 29,388.06 = 19,534.46 : x
  2. Step 2: Convert to fraction form
    21,321.26/29,388.06 = 19,534.46/x
  3. Step 3: Cross multiply
    21,321.26x = 29,388.06 × 19,534.46
  4. Step 4: Simplify right side
    21,321.26x = 574,079,735.61
  5. Step 5: Solve for x
    x = 574,079,735.61/21,321.26
  6. Step 6: Final answer
    x = 26,925.23

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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.