Home / 21,330.25-31,969.43-15,092.06

Finding the Fourth Proportional to 21,330.25, 31,969.43 and 15,092.06

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Solution

The fourth proportional to 21,330.25, 31,969.43 and 15,092.06 is: 22,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,330.25 : 31,969.43 = 15,092.06 : x
  2. Step 2: Convert to fraction form
    21,330.25/31,969.43 = 15,092.06/x
  3. Step 3: Cross multiply
    21,330.25x = 31,969.43 × 15,092.06
  4. Step 4: Simplify right side
    21,330.25x = 482,484,596.78
  5. Step 5: Solve for x
    x = 482,484,596.78/21,330.25
  6. Step 6: Final answer
    x = 22,619.74

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1.5x scale

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.