Home / 18,898.04-28,473.16-17,121.32

Finding the Fourth Proportional to 18,898.04, 28,473.16 and 17,121.32

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Solution

The fourth proportional to 18,898.04, 28,473.16 and 17,121.32 is: 25,796.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,898.04 : 28,473.16 = 17,121.32 : x
  2. Step 2: Convert to fraction form
    18,898.04/28,473.16 = 17,121.32/x
  3. Step 3: Cross multiply
    18,898.04x = 28,473.16 × 17,121.32
  4. Step 4: Simplify right side
    18,898.04x = 487,498,083.77
  5. Step 5: Solve for x
    x = 487,498,083.77/18,898.04
  6. Step 6: Final answer
    x = 25,796.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.