Home / 21,148.22-31,719.80-5,567.06

Finding the Fourth Proportional to 21,148.22, 31,719.80 and 5,567.06

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Solution

The fourth proportional to 21,148.22, 31,719.80 and 5,567.06 is: 8,349.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,148.22 : 31,719.80 = 5,567.06 : x
  2. Step 2: Convert to fraction form
    21,148.22/31,719.80 = 5,567.06/x
  3. Step 3: Cross multiply
    21,148.22x = 31,719.80 × 5,567.06
  4. Step 4: Simplify right side
    21,148.22x = 176,585,843.35
  5. Step 5: Solve for x
    x = 176,585,843.35/21,148.22
  6. Step 6: Final answer
    x = 8,349.92

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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.