Home / 21,235.14-29,261.33-16,425.88

Finding the Fourth Proportional to 21,235.14, 29,261.33 and 16,425.88

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Solution

The fourth proportional to 21,235.14, 29,261.33 and 16,425.88 is: 22,634.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.14 : 29,261.33 = 16,425.88 : x
  2. Step 2: Convert to fraction form
    21,235.14/29,261.33 = 16,425.88/x
  3. Step 3: Cross multiply
    21,235.14x = 29,261.33 × 16,425.88
  4. Step 4: Simplify right side
    21,235.14x = 480,643,111.26
  5. Step 5: Solve for x
    x = 480,643,111.26/21,235.14
  6. Step 6: Final answer
    x = 22,634.32

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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.