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Finding the Fourth Proportional to 22,175.81, 30,602.62 and 15,114.57

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Solution

The fourth proportional to 22,175.81, 30,602.62 and 15,114.57 is: 20,858.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,175.81 : 30,602.62 = 15,114.57 : x
  2. Step 2: Convert to fraction form
    22,175.81/30,602.62 = 15,114.57/x
  3. Step 3: Cross multiply
    22,175.81x = 30,602.62 × 15,114.57
  4. Step 4: Simplify right side
    22,175.81x = 462,545,442.17
  5. Step 5: Solve for x
    x = 462,545,442.17/22,175.81
  6. Step 6: Final answer
    x = 20,858.11

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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.