Home / 38,637.20-57,923.40-20,169.20

Finding the Fourth Proportional to 38,637.20, 57,923.40 and 20,169.20

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Solution

The fourth proportional to 38,637.20, 57,923.40 and 20,169.20 is: 30,236.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,637.20 : 57,923.40 = 20,169.20 : x
  2. Step 2: Convert to fraction form
    38,637.20/57,923.40 = 20,169.20/x
  3. Step 3: Cross multiply
    38,637.20x = 57,923.40 × 20,169.20
  4. Step 4: Simplify right side
    38,637.20x = 1,168,268,639.28
  5. Step 5: Solve for x
    x = 1,168,268,639.28/38,637.20
  6. Step 6: Final answer
    x = 30,236.89

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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.