Home / 36,579.60-54,869.40-21,805.20

Finding the Fourth Proportional to 36,579.60, 54,869.40 and 21,805.20

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Solution

The fourth proportional to 36,579.60, 54,869.40 and 21,805.20 is: 32,707.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,579.60 : 54,869.40 = 21,805.20 : x
  2. Step 2: Convert to fraction form
    36,579.60/54,869.40 = 21,805.20/x
  3. Step 3: Cross multiply
    36,579.60x = 54,869.40 × 21,805.20
  4. Step 4: Simplify right side
    36,579.60x = 1,196,438,240.88
  5. Step 5: Solve for x
    x = 1,196,438,240.88/36,579.60
  6. Step 6: Final answer
    x = 32,707.80

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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.