Home / 22,176.56-30,606.36-12,745.12

Finding the Fourth Proportional to 22,176.56, 30,606.36 and 12,745.12

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Solution

The fourth proportional to 22,176.56, 30,606.36 and 12,745.12 is: 17,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,176.56 : 30,606.36 = 12,745.12 : x
  2. Step 2: Convert to fraction form
    22,176.56/30,606.36 = 12,745.12/x
  3. Step 3: Cross multiply
    22,176.56x = 30,606.36 × 12,745.12
  4. Step 4: Simplify right side
    22,176.56x = 390,081,730.96
  5. Step 5: Solve for x
    x = 390,081,730.96/22,176.56
  6. Step 6: Final answer
    x = 17,589.82

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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.