Home / 21,987.89-32,986.46-7,195.66

Finding the Fourth Proportional to 21,987.89, 32,986.46 and 7,195.66

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Solution

The fourth proportional to 21,987.89, 32,986.46 and 7,195.66 is: 10,795.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,987.89 : 32,986.46 = 7,195.66 : x
  2. Step 2: Convert to fraction form
    21,987.89/32,986.46 = 7,195.66/x
  3. Step 3: Cross multiply
    21,987.89x = 32,986.46 × 7,195.66
  4. Step 4: Simplify right side
    21,987.89x = 237,359,350.76
  5. Step 5: Solve for x
    x = 237,359,350.76/21,987.89
  6. Step 6: Final answer
    x = 10,795.00

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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.