Home / 21,502.43-29,672.85-11,941.76

Finding the Fourth Proportional to 21,502.43, 29,672.85 and 11,941.76

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Solution

The fourth proportional to 21,502.43, 29,672.85 and 11,941.76 is: 16,479.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,502.43 : 29,672.85 = 11,941.76 : x
  2. Step 2: Convert to fraction form
    21,502.43/29,672.85 = 11,941.76/x
  3. Step 3: Cross multiply
    21,502.43x = 29,672.85 × 11,941.76
  4. Step 4: Simplify right side
    21,502.43x = 354,346,053.22
  5. Step 5: Solve for x
    x = 354,346,053.22/21,502.43
  6. Step 6: Final answer
    x = 16,479.35

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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.