Home / 38,477.20-57,683.40-20,009.20

Finding the Fourth Proportional to 38,477.20, 57,683.40 and 20,009.20

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Solution

The fourth proportional to 38,477.20, 57,683.40 and 20,009.20 is: 29,996.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,477.20 : 57,683.40 = 20,009.20 : x
  2. Step 2: Convert to fraction form
    38,477.20/57,683.40 = 20,009.20/x
  3. Step 3: Cross multiply
    38,477.20x = 57,683.40 × 20,009.20
  4. Step 4: Simplify right side
    38,477.20x = 1,154,198,687.28
  5. Step 5: Solve for x
    x = 1,154,198,687.28/38,477.20
  6. Step 6: Final answer
    x = 29,996.95

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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.