Home / 21,334.29-29,425.44-15,667.26

Finding the Fourth Proportional to 21,334.29, 29,425.44 and 15,667.26

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Solution

The fourth proportional to 21,334.29, 29,425.44 and 15,667.26 is: 21,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,334.29 : 29,425.44 = 15,667.26 : x
  2. Step 2: Convert to fraction form
    21,334.29/29,425.44 = 15,667.26/x
  3. Step 3: Cross multiply
    21,334.29x = 29,425.44 × 15,667.26
  4. Step 4: Simplify right side
    21,334.29x = 461,016,019.09
  5. Step 5: Solve for x
    x = 461,016,019.09/21,334.29
  6. Step 6: Final answer
    x = 21,609.16

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Half scale
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Double scale
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Similar ratio
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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.