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Finding the Fourth Proportional to 14,574.70, 21,862.05 and 14,380.30

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Solution

The fourth proportional to 14,574.70, 21,862.05 and 14,380.30 is: 21,570.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,574.70 : 21,862.05 = 14,380.30 : x
  2. Step 2: Convert to fraction form
    14,574.70/21,862.05 = 14,380.30/x
  3. Step 3: Cross multiply
    14,574.70x = 21,862.05 × 14,380.30
  4. Step 4: Simplify right side
    14,574.70x = 314,382,837.62
  5. Step 5: Solve for x
    x = 314,382,837.62/14,574.70
  6. Step 6: Final answer
    x = 21,570.45

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.