Home / 21,331.64-32,014.56-9,645.86

Finding the Fourth Proportional to 21,331.64, 32,014.56 and 9,645.86

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Solution

The fourth proportional to 21,331.64, 32,014.56 and 9,645.86 is: 14,476.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,331.64 : 32,014.56 = 9,645.86 : x
  2. Step 2: Convert to fraction form
    21,331.64/32,014.56 = 9,645.86/x
  3. Step 3: Cross multiply
    21,331.64x = 32,014.56 × 9,645.86
  4. Step 4: Simplify right side
    21,331.64x = 308,807,963.72
  5. Step 5: Solve for x
    x = 308,807,963.72/21,331.64
  6. Step 6: Final answer
    x = 14,476.52

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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.