Home / 21,447.54-29,596.89-11,887.02

Finding the Fourth Proportional to 21,447.54, 29,596.89 and 11,887.02

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Solution

The fourth proportional to 21,447.54, 29,596.89 and 11,887.02 is: 16,403.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,447.54 : 29,596.89 = 11,887.02 : x
  2. Step 2: Convert to fraction form
    21,447.54/29,596.89 = 11,887.02/x
  3. Step 3: Cross multiply
    21,447.54x = 29,596.89 × 11,887.02
  4. Step 4: Simplify right side
    21,447.54x = 351,818,823.37
  5. Step 5: Solve for x
    x = 351,818,823.37/21,447.54
  6. Step 6: Final answer
    x = 16,403.69

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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.