Home / 21,309.24-29,407.44-11,749.53

Finding the Fourth Proportional to 21,309.24, 29,407.44 and 11,749.53

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Solution

The fourth proportional to 21,309.24, 29,407.44 and 11,749.53 is: 16,214.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309.24 : 29,407.44 = 11,749.53 : x
  2. Step 2: Convert to fraction form
    21,309.24/29,407.44 = 11,749.53/x
  3. Step 3: Cross multiply
    21,309.24x = 29,407.44 × 11,749.53
  4. Step 4: Simplify right side
    21,309.24x = 345,523,598.50
  5. Step 5: Solve for x
    x = 345,523,598.50/21,309.24
  6. Step 6: Final answer
    x = 16,214.73

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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.