Home / 20,616.74-30,967.71-19,718.31

Finding the Fourth Proportional to 20,616.74, 30,967.71 and 19,718.31

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Solution

The fourth proportional to 20,616.74, 30,967.71 and 19,718.31 is: 29,618.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,616.74 : 30,967.71 = 19,718.31 : x
  2. Step 2: Convert to fraction form
    20,616.74/30,967.71 = 19,718.31/x
  3. Step 3: Cross multiply
    20,616.74x = 30,967.71 × 19,718.31
  4. Step 4: Simplify right side
    20,616.74x = 610,630,905.77
  5. Step 5: Solve for x
    x = 610,630,905.77/20,616.74
  6. Step 6: Final answer
    x = 29,618.22

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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.