Home / 22,171.56-30,600.52-21,175.08

Finding the Fourth Proportional to 22,171.56, 30,600.52 and 21,175.08

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Solution

The fourth proportional to 22,171.56, 30,600.52 and 21,175.08 is: 29,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,171.56 : 30,600.52 = 21,175.08 : x
  2. Step 2: Convert to fraction form
    22,171.56/30,600.52 = 21,175.08/x
  3. Step 3: Cross multiply
    22,171.56x = 30,600.52 × 21,175.08
  4. Step 4: Simplify right side
    22,171.56x = 647,968,459.04
  5. Step 5: Solve for x
    x = 647,968,459.04/22,171.56
  6. Step 6: Final answer
    x = 29,225.21

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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.