Home / 21,330.68-31,970.06-15,092.48

Finding the Fourth Proportional to 21,330.68, 31,970.06 and 15,092.48

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Solution

The fourth proportional to 21,330.68, 31,970.06 and 15,092.48 is: 22,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.68 : 31,970.06 = 15,092.48 : x
  2. Step 2: Convert to fraction form
    21,330.68/31,970.06 = 15,092.48/x
  3. Step 3: Cross multiply
    21,330.68x = 31,970.06 × 15,092.48
  4. Step 4: Simplify right side
    21,330.68x = 482,507,552.21
  5. Step 5: Solve for x
    x = 482,507,552.21/21,330.68
  6. Step 6: Final answer
    x = 22,620.36

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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.