Home / 38,428.45-57,637.81-12,135.85

Finding the Fourth Proportional to 38,428.45, 57,637.81 and 12,135.85

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Solution

The fourth proportional to 38,428.45, 57,637.81 and 12,135.85 is: 18,202.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,428.45 : 57,637.81 = 12,135.85 : x
  2. Step 2: Convert to fraction form
    38,428.45/57,637.81 = 12,135.85/x
  3. Step 3: Cross multiply
    38,428.45x = 57,637.81 × 12,135.85
  4. Step 4: Simplify right side
    38,428.45x = 699,483,816.49
  5. Step 5: Solve for x
    x = 699,483,816.49/38,428.45
  6. Step 6: Final answer
    x = 18,202.24

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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.