Home / 21,364.86-29,481.84-11,804.34

Finding the Fourth Proportional to 21,364.86, 29,481.84 and 11,804.34

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Solution

The fourth proportional to 21,364.86, 29,481.84 and 11,804.34 is: 16,289.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,364.86 : 29,481.84 = 11,804.34 : x
  2. Step 2: Convert to fraction form
    21,364.86/29,481.84 = 11,804.34/x
  3. Step 3: Cross multiply
    21,364.86x = 29,481.84 × 11,804.34
  4. Step 4: Simplify right side
    21,364.86x = 348,013,663.19
  5. Step 5: Solve for x
    x = 348,013,663.19/21,364.86
  6. Step 6: Final answer
    x = 16,289.07

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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.