Home / 20,712.12-28,578.06-17,368.44

Finding the Fourth Proportional to 20,712.12, 28,578.06 and 17,368.44

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Solution

The fourth proportional to 20,712.12, 28,578.06 and 17,368.44 is: 23,964.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,712.12 : 28,578.06 = 17,368.44 : x
  2. Step 2: Convert to fraction form
    20,712.12/28,578.06 = 17,368.44/x
  3. Step 3: Cross multiply
    20,712.12x = 28,578.06 × 17,368.44
  4. Step 4: Simplify right side
    20,712.12x = 496,356,320.43
  5. Step 5: Solve for x
    x = 496,356,320.43/20,712.12
  6. Step 6: Final answer
    x = 23,964.53

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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.