Home / 19,321.02-28,901.43-18,140.04

Finding the Fourth Proportional to 19,321.02, 28,901.43 and 18,140.04

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Solution

The fourth proportional to 19,321.02, 28,901.43 and 18,140.04 is: 27,134.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,321.02 : 28,901.43 = 18,140.04 : x
  2. Step 2: Convert to fraction form
    19,321.02/28,901.43 = 18,140.04/x
  3. Step 3: Cross multiply
    19,321.02x = 28,901.43 × 18,140.04
  4. Step 4: Simplify right side
    19,321.02x = 524,273,096.26
  5. Step 5: Solve for x
    x = 524,273,096.26/19,321.02
  6. Step 6: Final answer
    x = 27,134.86

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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.