Home / 22,187.62-30,616.40-12,759.22

Finding the Fourth Proportional to 22,187.62, 30,616.40 and 12,759.22

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Solution

The fourth proportional to 22,187.62, 30,616.40 and 12,759.22 is: 17,606.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.62 : 30,616.40 = 12,759.22 : x
  2. Step 2: Convert to fraction form
    22,187.62/30,616.40 = 12,759.22/x
  3. Step 3: Cross multiply
    22,187.62x = 30,616.40 × 12,759.22
  4. Step 4: Simplify right side
    22,187.62x = 390,641,383.21
  5. Step 5: Solve for x
    x = 390,641,383.21/22,187.62
  6. Step 6: Final answer
    x = 17,606.28

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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.