Home / 21,514.16-29,690.21-12,082.93

Finding the Fourth Proportional to 21,514.16, 29,690.21 and 12,082.93

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Solution

The fourth proportional to 21,514.16, 29,690.21 and 12,082.93 is: 16,674.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,514.16 : 29,690.21 = 12,082.93 : x
  2. Step 2: Convert to fraction form
    21,514.16/29,690.21 = 12,082.93/x
  3. Step 3: Cross multiply
    21,514.16x = 29,690.21 × 12,082.93
  4. Step 4: Simplify right side
    21,514.16x = 358,744,729.12
  5. Step 5: Solve for x
    x = 358,744,729.12/21,514.16
  6. Step 6: Final answer
    x = 16,674.82

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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.