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Finding the Fourth Proportional to 37,256.40, 55,868.40 and 12,286.80

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Solution

The fourth proportional to 37,256.40, 55,868.40 and 12,286.80 is: 18,424.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,256.40 : 55,868.40 = 12,286.80 : x
  2. Step 2: Convert to fraction form
    37,256.40/55,868.40 = 12,286.80/x
  3. Step 3: Cross multiply
    37,256.40x = 55,868.40 × 12,286.80
  4. Step 4: Simplify right side
    37,256.40x = 686,443,857.12
  5. Step 5: Solve for x
    x = 686,443,857.12/37,256.40
  6. Step 6: Final answer
    x = 18,424.86

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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.