Home / 43,623.30-65,382.15-19,898.36

Finding the Fourth Proportional to 43,623.30, 65,382.15 and 19,898.36

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Solution

The fourth proportional to 43,623.30, 65,382.15 and 19,898.36 is: 29,823.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,623.30 : 65,382.15 = 19,898.36 : x
  2. Step 2: Convert to fraction form
    43,623.30/65,382.15 = 19,898.36/x
  3. Step 3: Cross multiply
    43,623.30x = 65,382.15 × 19,898.36
  4. Step 4: Simplify right side
    43,623.30x = 1,300,997,231.36
  5. Step 5: Solve for x
    x = 1,300,997,231.36/43,623.30
  6. Step 6: Final answer
    x = 29,823.45

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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.