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Finding the Fourth Proportional to 25,238.42, 37,815.78 and 15,347.78

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Solution

The fourth proportional to 25,238.42, 37,815.78 and 15,347.78 is: 22,996.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,238.42 : 37,815.78 = 15,347.78 : x
  2. Step 2: Convert to fraction form
    25,238.42/37,815.78 = 15,347.78/x
  3. Step 3: Cross multiply
    25,238.42x = 37,815.78 × 15,347.78
  4. Step 4: Simplify right side
    25,238.42x = 580,388,424.06
  5. Step 5: Solve for x
    x = 580,388,424.06/25,238.42
  6. Step 6: Final answer
    x = 22,996.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.