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Finding the Fourth Proportional to 22,670.51, 31,276.33 and 13,108.64

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Solution

The fourth proportional to 22,670.51, 31,276.33 and 13,108.64 is: 18,084.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,670.51 : 31,276.33 = 13,108.64 : x
  2. Step 2: Convert to fraction form
    22,670.51/31,276.33 = 13,108.64/x
  3. Step 3: Cross multiply
    22,670.51x = 31,276.33 × 13,108.64
  4. Step 4: Simplify right side
    22,670.51x = 409,989,961.34
  5. Step 5: Solve for x
    x = 409,989,961.34/22,670.51
  6. Step 6: Final answer
    x = 18,084.73

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.