Home / 21,699.86-29,951.30-12,273.89

Finding the Fourth Proportional to 21,699.86, 29,951.30 and 12,273.89

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Solution

The fourth proportional to 21,699.86, 29,951.30 and 12,273.89 is: 16,941.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,699.86 : 29,951.30 = 12,273.89 : x
  2. Step 2: Convert to fraction form
    21,699.86/29,951.30 = 12,273.89/x
  3. Step 3: Cross multiply
    21,699.86x = 29,951.30 × 12,273.89
  4. Step 4: Simplify right side
    21,699.86x = 367,618,842.49
  5. Step 5: Solve for x
    x = 367,618,842.49/21,699.86
  6. Step 6: Final answer
    x = 16,941.07

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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.