Home / 21,976.74-30,319.53-16,247.97

Finding the Fourth Proportional to 21,976.74, 30,319.53 and 16,247.97

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Solution

The fourth proportional to 21,976.74, 30,319.53 and 16,247.97 is: 22,416.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,976.74 : 30,319.53 = 16,247.97 : x
  2. Step 2: Convert to fraction form
    21,976.74/30,319.53 = 16,247.97/x
  3. Step 3: Cross multiply
    21,976.74x = 30,319.53 × 16,247.97
  4. Step 4: Simplify right side
    21,976.74x = 492,630,813.85
  5. Step 5: Solve for x
    x = 492,630,813.85/21,976.74
  6. Step 6: Final answer
    x = 22,416.01

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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.