Home / 21,880.48-32,849.88-18,614.56

Finding the Fourth Proportional to 21,880.48, 32,849.88 and 18,614.56

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Solution

The fourth proportional to 21,880.48, 32,849.88 and 18,614.56 is: 27,946.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,880.48 : 32,849.88 = 18,614.56 : x
  2. Step 2: Convert to fraction form
    21,880.48/32,849.88 = 18,614.56/x
  3. Step 3: Cross multiply
    21,880.48x = 32,849.88 × 18,614.56
  4. Step 4: Simplify right side
    21,880.48x = 611,486,062.25
  5. Step 5: Solve for x
    x = 611,486,062.25/21,880.48
  6. Step 6: Final answer
    x = 27,946.65

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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.