Home / 38,135.79-57,203.08-11,840.56

Finding the Fourth Proportional to 38,135.79, 57,203.08 and 11,840.56

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Solution

The fourth proportional to 38,135.79, 57,203.08 and 11,840.56 is: 17,760.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,135.79 : 57,203.08 = 11,840.56 : x
  2. Step 2: Convert to fraction form
    38,135.79/57,203.08 = 11,840.56/x
  3. Step 3: Cross multiply
    38,135.79x = 57,203.08 × 11,840.56
  4. Step 4: Simplify right side
    38,135.79x = 677,316,542.83
  5. Step 5: Solve for x
    x = 677,316,542.83/38,135.79
  6. Step 6: Final answer
    x = 17,760.65

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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.