Home / 36,685.20-55,027.80-13,308.60

Finding the Fourth Proportional to 36,685.20, 55,027.80 and 13,308.60

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Solution

The fourth proportional to 36,685.20, 55,027.80 and 13,308.60 is: 19,962.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,685.20 : 55,027.80 = 13,308.60 : x
  2. Step 2: Convert to fraction form
    36,685.20/55,027.80 = 13,308.60/x
  3. Step 3: Cross multiply
    36,685.20x = 55,027.80 × 13,308.60
  4. Step 4: Simplify right side
    36,685.20x = 732,342,979.08
  5. Step 5: Solve for x
    x = 732,342,979.08/36,685.20
  6. Step 6: Final answer
    x = 19,962.90

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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.