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Finding the Fourth Proportional to 22,653.51, 31,264.31 and 13,705.95

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Solution

The fourth proportional to 22,653.51, 31,264.31 and 13,705.95 is: 18,915.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,653.51 : 31,264.31 = 13,705.95 : x
  2. Step 2: Convert to fraction form
    22,653.51/31,264.31 = 13,705.95/x
  3. Step 3: Cross multiply
    22,653.51x = 31,264.31 × 13,705.95
  4. Step 4: Simplify right side
    22,653.51x = 428,507,069.64
  5. Step 5: Solve for x
    x = 428,507,069.64/22,653.51
  6. Step 6: Final answer
    x = 18,915.70

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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.