Home / 21,739.71-32,611.86-6,945.15

Finding the Fourth Proportional to 21,739.71, 32,611.86 and 6,945.15

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Solution

The fourth proportional to 21,739.71, 32,611.86 and 6,945.15 is: 10,418.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,739.71 : 32,611.86 = 6,945.15 : x
  2. Step 2: Convert to fraction form
    21,739.71/32,611.86 = 6,945.15/x
  3. Step 3: Cross multiply
    21,739.71x = 32,611.86 × 6,945.15
  4. Step 4: Simplify right side
    21,739.71x = 226,494,259.48
  5. Step 5: Solve for x
    x = 226,494,259.48/21,739.71
  6. Step 6: Final answer
    x = 10,418.46

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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.