Home / 19,487.31-29,242.49-8,242.01

Finding the Fourth Proportional to 19,487.31, 29,242.49 and 8,242.01

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Solution

The fourth proportional to 19,487.31, 29,242.49 and 8,242.01 is: 12,367.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,487.31 : 29,242.49 = 8,242.01 : x
  2. Step 2: Convert to fraction form
    19,487.31/29,242.49 = 8,242.01/x
  3. Step 3: Cross multiply
    19,487.31x = 29,242.49 × 8,242.01
  4. Step 4: Simplify right side
    19,487.31x = 241,016,895.00
  5. Step 5: Solve for x
    x = 241,016,895.00/19,487.31
  6. Step 6: Final answer
    x = 12,367.89

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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.