Home / 22,172.54-30,601.90-21,176.06

Finding the Fourth Proportional to 22,172.54, 30,601.90 and 21,176.06

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Solution

The fourth proportional to 22,172.54, 30,601.90 and 21,176.06 is: 29,226.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,172.54 : 30,601.90 = 21,176.06 : x
  2. Step 2: Convert to fraction form
    22,172.54/30,601.90 = 21,176.06/x
  3. Step 3: Cross multiply
    22,172.54x = 30,601.90 × 21,176.06
  4. Step 4: Simplify right side
    22,172.54x = 648,027,670.51
  5. Step 5: Solve for x
    x = 648,027,670.51/22,172.54
  6. Step 6: Final answer
    x = 29,226.59

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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.