Home / 20,144.88-27,823.23-15,130.98

Finding the Fourth Proportional to 20,144.88, 27,823.23 and 15,130.98

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Solution

The fourth proportional to 20,144.88, 27,823.23 and 15,130.98 is: 20,898.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,144.88 : 27,823.23 = 15,130.98 : x
  2. Step 2: Convert to fraction form
    20,144.88/27,823.23 = 15,130.98/x
  3. Step 3: Cross multiply
    20,144.88x = 27,823.23 × 15,130.98
  4. Step 4: Simplify right side
    20,144.88x = 420,992,736.67
  5. Step 5: Solve for x
    x = 420,992,736.67/20,144.88
  6. Step 6: Final answer
    x = 20,898.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.