Home / 20,929.13-31,404.47-11,567.41

Finding the Fourth Proportional to 20,929.13, 31,404.47 and 11,567.41

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Solution

The fourth proportional to 20,929.13, 31,404.47 and 11,567.41 is: 17,357.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,929.13 : 31,404.47 = 11,567.41 : x
  2. Step 2: Convert to fraction form
    20,929.13/31,404.47 = 11,567.41/x
  3. Step 3: Cross multiply
    20,929.13x = 31,404.47 × 11,567.41
  4. Step 4: Simplify right side
    20,929.13x = 363,268,252.11
  5. Step 5: Solve for x
    x = 363,268,252.11/20,929.13
  6. Step 6: Final answer
    x = 17,357.06

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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.