Home / 20,251.62-27,931.41-17,985.24

Finding the Fourth Proportional to 20,251.62, 27,931.41 and 17,985.24

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Solution

The fourth proportional to 20,251.62, 27,931.41 and 17,985.24 is: 24,805.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,251.62 : 27,931.41 = 17,985.24 : x
  2. Step 2: Convert to fraction form
    20,251.62/27,931.41 = 17,985.24/x
  3. Step 3: Cross multiply
    20,251.62x = 27,931.41 × 17,985.24
  4. Step 4: Simplify right side
    20,251.62x = 502,353,112.39
  5. Step 5: Solve for x
    x = 502,353,112.39/20,251.62
  6. Step 6: Final answer
    x = 24,805.58

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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.