Home / 38,643.60-57,965.40-36,829.20

Finding the Fourth Proportional to 38,643.60, 57,965.40 and 36,829.20

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Solution

The fourth proportional to 38,643.60, 57,965.40 and 36,829.20 is: 55,243.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,643.60 : 57,965.40 = 36,829.20 : x
  2. Step 2: Convert to fraction form
    38,643.60/57,965.40 = 36,829.20/x
  3. Step 3: Cross multiply
    38,643.60x = 57,965.40 × 36,829.20
  4. Step 4: Simplify right side
    38,643.60x = 2,134,819,309.68
  5. Step 5: Solve for x
    x = 2,134,819,309.68/38,643.60
  6. Step 6: Final answer
    x = 55,243.80

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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.