Home / 21,347.88-32,056.38-20,449.32

Finding the Fourth Proportional to 21,347.88, 32,056.38 and 20,449.32

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Solution

The fourth proportional to 21,347.88, 32,056.38 and 20,449.32 is: 30,707.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.88 : 32,056.38 = 20,449.32 : x
  2. Step 2: Convert to fraction form
    21,347.88/32,056.38 = 20,449.32/x
  3. Step 3: Cross multiply
    21,347.88x = 32,056.38 × 20,449.32
  4. Step 4: Simplify right side
    21,347.88x = 655,531,172.66
  5. Step 5: Solve for x
    x = 655,531,172.66/21,347.88
  6. Step 6: Final answer
    x = 30,707.09

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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.