Home / 22,618.89-31,214.07-13,185.63

Finding the Fourth Proportional to 22,618.89, 31,214.07 and 13,185.63

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Solution

The fourth proportional to 22,618.89, 31,214.07 and 13,185.63 is: 18,196.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,618.89 : 31,214.07 = 13,185.63 : x
  2. Step 2: Convert to fraction form
    22,618.89/31,214.07 = 13,185.63/x
  3. Step 3: Cross multiply
    22,618.89x = 31,214.07 × 13,185.63
  4. Step 4: Simplify right side
    22,618.89x = 411,577,177.81
  5. Step 5: Solve for x
    x = 411,577,177.81/22,618.89
  6. Step 6: Final answer
    x = 18,196.17

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Similar ratio
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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.