Home / 19,243.28-28,824.42-12,219.77

Finding the Fourth Proportional to 19,243.28, 28,824.42 and 12,219.77

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Solution

The fourth proportional to 19,243.28, 28,824.42 and 12,219.77 is: 18,303.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,243.28 : 28,824.42 = 12,219.77 : x
  2. Step 2: Convert to fraction form
    19,243.28/28,824.42 = 12,219.77/x
  3. Step 3: Cross multiply
    19,243.28x = 28,824.42 × 12,219.77
  4. Step 4: Simplify right side
    19,243.28x = 352,227,782.78
  5. Step 5: Solve for x
    x = 352,227,782.78/19,243.28
  6. Step 6: Final answer
    x = 18,303.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.