Home / 38,514.42-53,144.67-21,516.57

Finding the Fourth Proportional to 38,514.42, 53,144.67 and 21,516.57

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Solution

The fourth proportional to 38,514.42, 53,144.67 and 21,516.57 is: 29,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,514.42 : 53,144.67 = 21,516.57 : x
  2. Step 2: Convert to fraction form
    38,514.42/53,144.67 = 21,516.57/x
  3. Step 3: Cross multiply
    38,514.42x = 53,144.67 × 21,516.57
  4. Step 4: Simplify right side
    38,514.42x = 1,143,491,012.18
  5. Step 5: Solve for x
    x = 1,143,491,012.18/38,514.42
  6. Step 6: Final answer
    x = 29,689.95

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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.