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Finding the Fourth Proportional to 14,621, 21,920.52 and 4,754.42

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Solution

The fourth proportional to 14,621, 21,920.52 and 4,754.42 is: 7,128.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,621 : 21,920.52 = 4,754.42 : x
  2. Step 2: Convert to fraction form
    14,621/21,920.52 = 4,754.42/x
  3. Step 3: Cross multiply
    14,621x = 21,920.52 × 4,754.42
  4. Step 4: Simplify right side
    14,621x = 104,219,358.70
  5. Step 5: Solve for x
    x = 104,219,358.70/14,621
  6. Step 6: Final answer
    x = 7,128.06

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Why These Related Problems?

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