Home / 21,309.33-29,407.08-11,749.56

Finding the Fourth Proportional to 21,309.33, 29,407.08 and 11,749.56

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Solution

The fourth proportional to 21,309.33, 29,407.08 and 11,749.56 is: 16,214.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309.33 : 29,407.08 = 11,749.56 : x
  2. Step 2: Convert to fraction form
    21,309.33/29,407.08 = 11,749.56/x
  3. Step 3: Cross multiply
    21,309.33x = 29,407.08 × 11,749.56
  4. Step 4: Simplify right side
    21,309.33x = 345,520,085.53
  5. Step 5: Solve for x
    x = 345,520,085.53/21,309.33
  6. Step 6: Final answer
    x = 16,214.50

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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.