Home / 18,813.68-28,223.98-15,334.56

Finding the Fourth Proportional to 18,813.68, 28,223.98 and 15,334.56

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Solution

The fourth proportional to 18,813.68, 28,223.98 and 15,334.56 is: 23,004.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,813.68 : 28,223.98 = 15,334.56 : x
  2. Step 2: Convert to fraction form
    18,813.68/28,223.98 = 15,334.56/x
  3. Step 3: Cross multiply
    18,813.68x = 28,223.98 × 15,334.56
  4. Step 4: Simplify right side
    18,813.68x = 432,802,314.75
  5. Step 5: Solve for x
    x = 432,802,314.75/18,813.68
  6. Step 6: Final answer
    x = 23,004.66

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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.