Home / 21,975.20-32,962.80-18,087.20

Finding the Fourth Proportional to 21,975.20, 32,962.80 and 18,087.20

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Solution

The fourth proportional to 21,975.20, 32,962.80 and 18,087.20 is: 27,130.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,975.20 : 32,962.80 = 18,087.20 : x
  2. Step 2: Convert to fraction form
    21,975.20/32,962.80 = 18,087.20/x
  3. Step 3: Cross multiply
    21,975.20x = 32,962.80 × 18,087.20
  4. Step 4: Simplify right side
    21,975.20x = 596,204,756.16
  5. Step 5: Solve for x
    x = 596,204,756.16/21,975.20
  6. Step 6: Final answer
    x = 27,130.80

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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.