Home / 20,215.44-30,326.39-5,985.36

Finding the Fourth Proportional to 20,215.44, 30,326.39 and 5,985.36

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Solution

The fourth proportional to 20,215.44, 30,326.39 and 5,985.36 is: 8,978.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,215.44 : 30,326.39 = 5,985.36 : x
  2. Step 2: Convert to fraction form
    20,215.44/30,326.39 = 5,985.36/x
  3. Step 3: Cross multiply
    20,215.44x = 30,326.39 × 5,985.36
  4. Step 4: Simplify right side
    20,215.44x = 181,514,331.72
  5. Step 5: Solve for x
    x = 181,514,331.72/20,215.44
  6. Step 6: Final answer
    x = 8,978.99

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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.