Home / 21,273.48-29,352.96-12,317.76

Finding the Fourth Proportional to 21,273.48, 29,352.96 and 12,317.76

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Solution

The fourth proportional to 21,273.48, 29,352.96 and 12,317.76 is: 16,995.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.48 : 29,352.96 = 12,317.76 : x
  2. Step 2: Convert to fraction form
    21,273.48/29,352.96 = 12,317.76/x
  3. Step 3: Cross multiply
    21,273.48x = 29,352.96 × 12,317.76
  4. Step 4: Simplify right side
    21,273.48x = 361,562,716.57
  5. Step 5: Solve for x
    x = 361,562,716.57/21,273.48
  6. Step 6: Final answer
    x = 16,995.94

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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.