Home / 19,630.48-29,450.08-18,769.36

Finding the Fourth Proportional to 19,630.48, 29,450.08 and 18,769.36

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Solution

The fourth proportional to 19,630.48, 29,450.08 and 18,769.36 is: 28,158.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,630.48 : 29,450.08 = 18,769.36 : x
  2. Step 2: Convert to fraction form
    19,630.48/29,450.08 = 18,769.36/x
  3. Step 3: Cross multiply
    19,630.48x = 29,450.08 × 18,769.36
  4. Step 4: Simplify right side
    19,630.48x = 552,759,153.55
  5. Step 5: Solve for x
    x = 552,759,153.55/19,630.48
  6. Step 6: Final answer
    x = 28,158.21

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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.