Home / 22,290.36-30,760.58-12,219.22

Finding the Fourth Proportional to 22,290.36, 30,760.58 and 12,219.22

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Solution

The fourth proportional to 22,290.36, 30,760.58 and 12,219.22 is: 16,862.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,290.36 : 30,760.58 = 12,219.22 : x
  2. Step 2: Convert to fraction form
    22,290.36/30,760.58 = 12,219.22/x
  3. Step 3: Cross multiply
    22,290.36x = 30,760.58 × 12,219.22
  4. Step 4: Simplify right side
    22,290.36x = 375,870,294.35
  5. Step 5: Solve for x
    x = 375,870,294.35/22,290.36
  6. Step 6: Final answer
    x = 16,862.46

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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.