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Finding the Third Proportional to 19,212.19 and 28,621.13

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Solution

The third proportional to 19,212.19 and 28,621.13 is: 42,637.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,212.19 : 28,621.13 = 28,621.13 : x
  2. Step 2: Convert to fraction form
    19,212.19/28,621.13 = 28,621.13/x
  3. Step 3: Cross multiply
    19,212.19x = 28,621.13 × 28,621.13
  4. Step 4: Simplify right side
    19,212.19x = 819,168,796.27
  5. Step 5: Solve for x
    x = 819,168,796.27/19,212.19
  6. Step 6: Final answer
    x = 42,637.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.