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Finding the Fourth Proportional to 37,120.40, 55,715.40 and 19,602.80

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Solution

The fourth proportional to 37,120.40, 55,715.40 and 19,602.80 is: 29,422.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,120.40 : 55,715.40 = 19,602.80 : x
  2. Step 2: Convert to fraction form
    37,120.40/55,715.40 = 19,602.80/x
  3. Step 3: Cross multiply
    37,120.40x = 55,715.40 × 19,602.80
  4. Step 4: Simplify right side
    37,120.40x = 1,092,177,843.12
  5. Step 5: Solve for x
    x = 1,092,177,843.12/37,120.40
  6. Step 6: Final answer
    x = 29,422.58

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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.