Home / 15,934.31-21,976.25-14,143.09

Finding the Fourth Proportional to 15,934.31, 21,976.25 and 14,143.09

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Solution

The fourth proportional to 15,934.31, 21,976.25 and 14,143.09 is: 19,505.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,934.31 : 21,976.25 = 14,143.09 : x
  2. Step 2: Convert to fraction form
    15,934.31/21,976.25 = 14,143.09/x
  3. Step 3: Cross multiply
    15,934.31x = 21,976.25 × 14,143.09
  4. Step 4: Simplify right side
    15,934.31x = 310,812,062.03
  5. Step 5: Solve for x
    x = 310,812,062.03/15,934.31
  6. Step 6: Final answer
    x = 19,505.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.