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Finding the Fourth Proportional to 21,937, 30,273.08 and 12,001

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Solution

The fourth proportional to 21,937, 30,273.08 and 12,001 is: 16,561.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,937 : 30,273.08 = 12,001 : x
  2. Step 2: Convert to fraction form
    21,937/30,273.08 = 12,001/x
  3. Step 3: Cross multiply
    21,937x = 30,273.08 × 12,001
  4. Step 4: Simplify right side
    21,937x = 363,307,233.08
  5. Step 5: Solve for x
    x = 363,307,233.08/21,937
  6. Step 6: Final answer
    x = 16,561.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.