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Finding the Third Proportional to 13,291.79 and 19,317.79

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Solution

The third proportional to 13,291.79 and 19,317.79 is: 28,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291.79 : 19,317.79 = 19,317.79 : x
  2. Step 2: Convert to fraction form
    13,291.79/19,317.79 = 19,317.79/x
  3. Step 3: Cross multiply
    13,291.79x = 19,317.79 × 19,317.79
  4. Step 4: Simplify right side
    13,291.79x = 373,176,936.53
  5. Step 5: Solve for x
    x = 373,176,936.53/13,291.79
  6. Step 6: Final answer
    x = 28,075.74

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.