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Finding the Fourth Proportional to 36,785.40, 55,200.90 and 19,267.80

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Solution

The fourth proportional to 36,785.40, 55,200.90 and 19,267.80 is: 28,913.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,785.40 : 55,200.90 = 19,267.80 : x
  2. Step 2: Convert to fraction form
    36,785.40/55,200.90 = 19,267.80/x
  3. Step 3: Cross multiply
    36,785.40x = 55,200.90 × 19,267.80
  4. Step 4: Simplify right side
    36,785.40x = 1,063,599,901.02
  5. Step 5: Solve for x
    x = 1,063,599,901.02/36,785.40
  6. Step 6: Final answer
    x = 28,913.64

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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.