Home / 38,477.45-57,712.38-18,769.61

Finding the Fourth Proportional to 38,477.45, 57,712.38 and 18,769.61

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Solution

The fourth proportional to 38,477.45, 57,712.38 and 18,769.61 is: 28,152.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,477.45 : 57,712.38 = 18,769.61 : x
  2. Step 2: Convert to fraction form
    38,477.45/57,712.38 = 18,769.61/x
  3. Step 3: Cross multiply
    38,477.45x = 57,712.38 × 18,769.61
  4. Step 4: Simplify right side
    38,477.45x = 1,083,238,576.21
  5. Step 5: Solve for x
    x = 1,083,238,576.21/38,477.45
  6. Step 6: Final answer
    x = 28,152.56

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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.