Home / 22,690.56-31,310.52-12,617.40

Finding the Fourth Proportional to 22,690.56, 31,310.52 and 12,617.40

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Solution

The fourth proportional to 22,690.56, 31,310.52 and 12,617.40 is: 17,410.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,690.56 : 31,310.52 = 12,617.40 : x
  2. Step 2: Convert to fraction form
    22,690.56/31,310.52 = 12,617.40/x
  3. Step 3: Cross multiply
    22,690.56x = 31,310.52 × 12,617.40
  4. Step 4: Simplify right side
    22,690.56x = 395,057,355.05
  5. Step 5: Solve for x
    x = 395,057,355.05/22,690.56
  6. Step 6: Final answer
    x = 17,410.65

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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.