Home / 22,189.28-30,619.32-12,626.56

Finding the Fourth Proportional to 22,189.28, 30,619.32 and 12,626.56

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Solution

The fourth proportional to 22,189.28, 30,619.32 and 12,626.56 is: 17,423.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,189.28 : 30,619.32 = 12,626.56 : x
  2. Step 2: Convert to fraction form
    22,189.28/30,619.32 = 12,626.56/x
  3. Step 3: Cross multiply
    22,189.28x = 30,619.32 × 12,626.56
  4. Step 4: Simplify right side
    22,189.28x = 386,616,681.14
  5. Step 5: Solve for x
    x = 386,616,681.14/22,189.28
  6. Step 6: Final answer
    x = 17,423.58

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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.