Home / 21,672.12-29,887.56-14,946.96

Finding the Fourth Proportional to 21,672.12, 29,887.56 and 14,946.96

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Solution

The fourth proportional to 21,672.12, 29,887.56 and 14,946.96 is: 20,613.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,672.12 : 29,887.56 = 14,946.96 : x
  2. Step 2: Convert to fraction form
    21,672.12/29,887.56 = 14,946.96/x
  3. Step 3: Cross multiply
    21,672.12x = 29,887.56 × 14,946.96
  4. Step 4: Simplify right side
    21,672.12x = 446,728,163.82
  5. Step 5: Solve for x
    x = 446,728,163.82/21,672.12
  6. Step 6: Final answer
    x = 20,613.03

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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.