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Finding the Third Proportional to 19,428 and 28,502

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Solution

The third proportional to 19,428 and 28,502 is: 41,814.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428 : 28,502 = 28,502 : x
  2. Step 2: Convert to fraction form
    19,428/28,502 = 28,502/x
  3. Step 3: Cross multiply
    19,428x = 28,502 × 28,502
  4. Step 4: Simplify right side
    19,428x = 812,364,004
  5. Step 5: Solve for x
    x = 812,364,004/19,428
  6. Step 6: Final answer
    x = 41,814.08

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.