Home / 37,789.60-56,684.40-21,200.80

Finding the Fourth Proportional to 37,789.60, 56,684.40 and 21,200.80

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Solution

The fourth proportional to 37,789.60, 56,684.40 and 21,200.80 is: 31,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,789.60 : 56,684.40 = 21,200.80 : x
  2. Step 2: Convert to fraction form
    37,789.60/56,684.40 = 21,200.80/x
  3. Step 3: Cross multiply
    37,789.60x = 56,684.40 × 21,200.80
  4. Step 4: Simplify right side
    37,789.60x = 1,201,754,627.52
  5. Step 5: Solve for x
    x = 1,201,754,627.52/37,789.60
  6. Step 6: Final answer
    x = 31,801.20

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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.