Home / 21,667.06-29,871.62-17,205.58

Finding the Fourth Proportional to 21,667.06, 29,871.62 and 17,205.58

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Solution

The fourth proportional to 21,667.06, 29,871.62 and 17,205.58 is: 23,720.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,667.06 : 29,871.62 = 17,205.58 : x
  2. Step 2: Convert to fraction form
    21,667.06/29,871.62 = 17,205.58/x
  3. Step 3: Cross multiply
    21,667.06x = 29,871.62 × 17,205.58
  4. Step 4: Simplify right side
    21,667.06x = 513,958,547.64
  5. Step 5: Solve for x
    x = 513,958,547.64/21,667.06
  6. Step 6: Final answer
    x = 23,720.73

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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.