Home / 22,228.29-30,669.09-13,619.04

Finding the Fourth Proportional to 22,228.29, 30,669.09 and 13,619.04

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Solution

The fourth proportional to 22,228.29, 30,669.09 and 13,619.04 is: 18,790.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,228.29 : 30,669.09 = 13,619.04 : x
  2. Step 2: Convert to fraction form
    22,228.29/30,669.09 = 13,619.04/x
  3. Step 3: Cross multiply
    22,228.29x = 30,669.09 × 13,619.04
  4. Step 4: Simplify right side
    22,228.29x = 417,683,563.47
  5. Step 5: Solve for x
    x = 417,683,563.47/22,228.29
  6. Step 6: Final answer
    x = 18,790.63

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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.