Home / 38,655.36-57,986.28-12,359.52

Finding the Fourth Proportional to 38,655.36, 57,986.28 and 12,359.52

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Solution

The fourth proportional to 38,655.36, 57,986.28 and 12,359.52 is: 18,540.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,655.36 : 57,986.28 = 12,359.52 : x
  2. Step 2: Convert to fraction form
    38,655.36/57,986.28 = 12,359.52/x
  3. Step 3: Cross multiply
    38,655.36x = 57,986.28 × 12,359.52
  4. Step 4: Simplify right side
    38,655.36x = 716,682,587.39
  5. Step 5: Solve for x
    x = 716,682,587.39/38,655.36
  6. Step 6: Final answer
    x = 18,540.32

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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.