Home / 20,474.24-30,551.64-18,267.80

Finding the Fourth Proportional to 20,474.24, 30,551.64 and 18,267.80

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Solution

The fourth proportional to 20,474.24, 30,551.64 and 18,267.80 is: 27,259.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474.24 : 30,551.64 = 18,267.80 : x
  2. Step 2: Convert to fraction form
    20,474.24/30,551.64 = 18,267.80/x
  3. Step 3: Cross multiply
    20,474.24x = 30,551.64 × 18,267.80
  4. Step 4: Simplify right side
    20,474.24x = 558,111,249.19
  5. Step 5: Solve for x
    x = 558,111,249.19/20,474.24
  6. Step 6: Final answer
    x = 27,259.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.