Home / 21,797.52-30,005.28-18,998.16

Finding the Fourth Proportional to 21,797.52, 30,005.28 and 18,998.16

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Solution

The fourth proportional to 21,797.52, 30,005.28 and 18,998.16 is: 26,151.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.52 : 30,005.28 = 18,998.16 : x
  2. Step 2: Convert to fraction form
    21,797.52/30,005.28 = 18,998.16/x
  3. Step 3: Cross multiply
    21,797.52x = 30,005.28 × 18,998.16
  4. Step 4: Simplify right side
    21,797.52x = 570,045,110.28
  5. Step 5: Solve for x
    x = 570,045,110.28/21,797.52
  6. Step 6: Final answer
    x = 26,151.83

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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.