Home / 17,167.32-23,678.65-15,755.56

Finding the Fourth Proportional to 17,167.32, 23,678.65 and 15,755.56

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Solution

The fourth proportional to 17,167.32, 23,678.65 and 15,755.56 is: 21,731.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,167.32 : 23,678.65 = 15,755.56 : x
  2. Step 2: Convert to fraction form
    17,167.32/23,678.65 = 15,755.56/x
  3. Step 3: Cross multiply
    17,167.32x = 23,678.65 × 15,755.56
  4. Step 4: Simplify right side
    17,167.32x = 373,070,292.21
  5. Step 5: Solve for x
    x = 373,070,292.21/17,167.32
  6. Step 6: Final answer
    x = 21,731.42

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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.