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Finding the Fourth Proportional to 40,239, 55,529.82 and 22,575

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Solution

The fourth proportional to 40,239, 55,529.82 and 22,575 is: 31,153.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,239 : 55,529.82 = 22,575 : x
  2. Step 2: Convert to fraction form
    40,239/55,529.82 = 22,575/x
  3. Step 3: Cross multiply
    40,239x = 55,529.82 × 22,575
  4. Step 4: Simplify right side
    40,239x = 1,253,585,686.50
  5. Step 5: Solve for x
    x = 1,253,585,686.50/40,239
  6. Step 6: Final answer
    x = 31,153.50

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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.