Home / 21,326.33-31,989.34-16,650.25

Finding the Fourth Proportional to 21,326.33, 31,989.34 and 16,650.25

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Solution

The fourth proportional to 21,326.33, 31,989.34 and 16,650.25 is: 24,975.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,326.33 : 31,989.34 = 16,650.25 : x
  2. Step 2: Convert to fraction form
    21,326.33/31,989.34 = 16,650.25/x
  3. Step 3: Cross multiply
    21,326.33x = 31,989.34 × 16,650.25
  4. Step 4: Simplify right side
    21,326.33x = 532,630,322.24
  5. Step 5: Solve for x
    x = 532,630,322.24/21,326.33
  6. Step 6: Final answer
    x = 24,975.25

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Double scale
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Similar ratio
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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.