Home / 30,665.22-45,976.58-15,643.18

Finding the Fourth Proportional to 30,665.22, 45,976.58 and 15,643.18

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Solution

The fourth proportional to 30,665.22, 45,976.58 and 15,643.18 is: 23,453.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,665.22 : 45,976.58 = 15,643.18 : x
  2. Step 2: Convert to fraction form
    30,665.22/45,976.58 = 15,643.18/x
  3. Step 3: Cross multiply
    30,665.22x = 45,976.58 × 15,643.18
  4. Step 4: Simplify right side
    30,665.22x = 719,219,916.72
  5. Step 5: Solve for x
    x = 719,219,916.72/30,665.22
  6. Step 6: Final answer
    x = 23,453.93

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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.