Home / 21,293.22-31,946.94-9,445.36

Finding the Fourth Proportional to 21,293.22, 31,946.94 and 9,445.36

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Solution

The fourth proportional to 21,293.22, 31,946.94 and 9,445.36 is: 14,171.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,293.22 : 31,946.94 = 9,445.36 : x
  2. Step 2: Convert to fraction form
    21,293.22/31,946.94 = 9,445.36/x
  3. Step 3: Cross multiply
    21,293.22x = 31,946.94 × 9,445.36
  4. Step 4: Simplify right side
    21,293.22x = 301,750,480.55
  5. Step 5: Solve for x
    x = 301,750,480.55/21,293.22
  6. Step 6: Final answer
    x = 14,171.20

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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.