Home / 20,953.48-31,418.58-9,696.52

Finding the Fourth Proportional to 20,953.48, 31,418.58 and 9,696.52

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Solution

The fourth proportional to 20,953.48, 31,418.58 and 9,696.52 is: 14,539.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,953.48 : 31,418.58 = 9,696.52 : x
  2. Step 2: Convert to fraction form
    20,953.48/31,418.58 = 9,696.52/x
  3. Step 3: Cross multiply
    20,953.48x = 31,418.58 × 9,696.52
  4. Step 4: Simplify right side
    20,953.48x = 304,650,889.34
  5. Step 5: Solve for x
    x = 304,650,889.34/20,953.48
  6. Step 6: Final answer
    x = 14,539.39

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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.