Home / 21,514.36-29,689.70-12,082.92

Finding the Fourth Proportional to 21,514.36, 29,689.70 and 12,082.92

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Solution

The fourth proportional to 21,514.36, 29,689.70 and 12,082.92 is: 16,674.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.36 : 29,689.70 = 12,082.92 : x
  2. Step 2: Convert to fraction form
    21,514.36/29,689.70 = 12,082.92/x
  3. Step 3: Cross multiply
    21,514.36x = 29,689.70 × 12,082.92
  4. Step 4: Simplify right side
    21,514.36x = 358,738,269.92
  5. Step 5: Solve for x
    x = 358,738,269.92/21,514.36
  6. Step 6: Final answer
    x = 16,674.36

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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.