Home / 21,281.67-29,367.56-11,849.63

Finding the Fourth Proportional to 21,281.67, 29,367.56 and 11,849.63

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Solution

The fourth proportional to 21,281.67, 29,367.56 and 11,849.63 is: 16,351.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,281.67 : 29,367.56 = 11,849.63 : x
  2. Step 2: Convert to fraction form
    21,281.67/29,367.56 = 11,849.63/x
  3. Step 3: Cross multiply
    21,281.67x = 29,367.56 × 11,849.63
  4. Step 4: Simplify right side
    21,281.67x = 347,994,602.79
  5. Step 5: Solve for x
    x = 347,994,602.79/21,281.67
  6. Step 6: Final answer
    x = 16,351.85

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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.