Home / 21,557.44-29,749.20-12,125.92

Finding the Fourth Proportional to 21,557.44, 29,749.20 and 12,125.92

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Solution

The fourth proportional to 21,557.44, 29,749.20 and 12,125.92 is: 16,733.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557.44 : 29,749.20 = 12,125.92 : x
  2. Step 2: Convert to fraction form
    21,557.44/29,749.20 = 12,125.92/x
  3. Step 3: Cross multiply
    21,557.44x = 29,749.20 × 12,125.92
  4. Step 4: Simplify right side
    21,557.44x = 360,736,419.26
  5. Step 5: Solve for x
    x = 360,736,419.26/21,557.44
  6. Step 6: Final answer
    x = 16,733.73

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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.