Home / 22,617.80-31,212.02-13,185.75

Finding the Fourth Proportional to 22,617.80, 31,212.02 and 13,185.75

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Solution

The fourth proportional to 22,617.80, 31,212.02 and 13,185.75 is: 18,196.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,617.80 : 31,212.02 = 13,185.75 : x
  2. Step 2: Convert to fraction form
    22,617.80/31,212.02 = 13,185.75/x
  3. Step 3: Cross multiply
    22,617.80x = 31,212.02 × 13,185.75
  4. Step 4: Simplify right side
    22,617.80x = 411,553,892.72
  5. Step 5: Solve for x
    x = 411,553,892.72/22,617.80
  6. Step 6: Final answer
    x = 18,196.02

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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.