Home / 20,598.17-28,418.78-11,644.79

Finding the Fourth Proportional to 20,598.17, 28,418.78 and 11,644.79

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Solution

The fourth proportional to 20,598.17, 28,418.78 and 11,644.79 is: 16,066.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,598.17 : 28,418.78 = 11,644.79 : x
  2. Step 2: Convert to fraction form
    20,598.17/28,418.78 = 11,644.79/x
  3. Step 3: Cross multiply
    20,598.17x = 28,418.78 × 11,644.79
  4. Step 4: Simplify right side
    20,598.17x = 330,930,666.93
  5. Step 5: Solve for x
    x = 330,930,666.93/20,598.17
  6. Step 6: Final answer
    x = 16,066.02

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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.