Home / 20,960.69-28,967.24-17,177.89

Finding the Fourth Proportional to 20,960.69, 28,967.24 and 17,177.89

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Solution

The fourth proportional to 20,960.69, 28,967.24 and 17,177.89 is: 23,739.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.69 : 28,967.24 = 17,177.89 : x
  2. Step 2: Convert to fraction form
    20,960.69/28,967.24 = 17,177.89/x
  3. Step 3: Cross multiply
    20,960.69x = 28,967.24 × 17,177.89
  4. Step 4: Simplify right side
    20,960.69x = 497,596,062.32
  5. Step 5: Solve for x
    x = 497,596,062.32/20,960.69
  6. Step 6: Final answer
    x = 23,739.49

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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.