Home / 19,102.53-28,658.63-13,491.16

Finding the Fourth Proportional to 19,102.53, 28,658.63 and 13,491.16

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Solution

The fourth proportional to 19,102.53, 28,658.63 and 13,491.16 is: 20,240.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,102.53 : 28,658.63 = 13,491.16 : x
  2. Step 2: Convert to fraction form
    19,102.53/28,658.63 = 13,491.16/x
  3. Step 3: Cross multiply
    19,102.53x = 28,658.63 × 13,491.16
  4. Step 4: Simplify right side
    19,102.53x = 386,638,268.09
  5. Step 5: Solve for x
    x = 386,638,268.09/19,102.53
  6. Step 6: Final answer
    x = 20,240.16

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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.