Home / 18,814.18-25,904.46-15,975.58

Finding the Fourth Proportional to 18,814.18, 25,904.46 and 15,975.58

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Solution

The fourth proportional to 18,814.18, 25,904.46 and 15,975.58 is: 21,996.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,814.18 : 25,904.46 = 15,975.58 : x
  2. Step 2: Convert to fraction form
    18,814.18/25,904.46 = 15,975.58/x
  3. Step 3: Cross multiply
    18,814.18x = 25,904.46 × 15,975.58
  4. Step 4: Simplify right side
    18,814.18x = 413,838,773.09
  5. Step 5: Solve for x
    x = 413,838,773.09/18,814.18
  6. Step 6: Final answer
    x = 21,996.11

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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.