Home / 19,975.74-27,540.90-16,377.45

Finding the Fourth Proportional to 19,975.74, 27,540.90 and 16,377.45

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Solution

The fourth proportional to 19,975.74, 27,540.90 and 16,377.45 is: 22,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,975.74 : 27,540.90 = 16,377.45 : x
  2. Step 2: Convert to fraction form
    19,975.74/27,540.90 = 16,377.45/x
  3. Step 3: Cross multiply
    19,975.74x = 27,540.90 × 16,377.45
  4. Step 4: Simplify right side
    19,975.74x = 451,049,712.71
  5. Step 5: Solve for x
    x = 451,049,712.71/19,975.74
  6. Step 6: Final answer
    x = 22,579.88

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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.