Home / 21,987.55-32,986.45-7,195.57

Finding the Fourth Proportional to 21,987.55, 32,986.45 and 7,195.57

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Solution

The fourth proportional to 21,987.55, 32,986.45 and 7,195.57 is: 10,795.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987.55 : 32,986.45 = 7,195.57 : x
  2. Step 2: Convert to fraction form
    21,987.55/32,986.45 = 7,195.57/x
  3. Step 3: Cross multiply
    21,987.55x = 32,986.45 × 7,195.57
  4. Step 4: Simplify right side
    21,987.55x = 237,356,385.84
  5. Step 5: Solve for x
    x = 237,356,385.84/21,987.55
  6. Step 6: Final answer
    x = 10,795.04

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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.