Home / 21,904.50-30,228.26-12,473.07

Finding the Fourth Proportional to 21,904.50, 30,228.26 and 12,473.07

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Solution

The fourth proportional to 21,904.50, 30,228.26 and 12,473.07 is: 17,212.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,904.50 : 30,228.26 = 12,473.07 : x
  2. Step 2: Convert to fraction form
    21,904.50/30,228.26 = 12,473.07/x
  3. Step 3: Cross multiply
    21,904.50x = 30,228.26 × 12,473.07
  4. Step 4: Simplify right side
    21,904.50x = 377,039,202.96
  5. Step 5: Solve for x
    x = 377,039,202.96/21,904.50
  6. Step 6: Final answer
    x = 17,212.87

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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.