Home / 21,446.96-29,586.84-13,895.87

Finding the Fourth Proportional to 21,446.96, 29,586.84 and 13,895.87

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Solution

The fourth proportional to 21,446.96, 29,586.84 and 13,895.87 is: 19,169.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,446.96 : 29,586.84 = 13,895.87 : x
  2. Step 2: Convert to fraction form
    21,446.96/29,586.84 = 13,895.87/x
  3. Step 3: Cross multiply
    21,446.96x = 29,586.84 × 13,895.87
  4. Step 4: Simplify right side
    21,446.96x = 411,134,734.42
  5. Step 5: Solve for x
    x = 411,134,734.42/21,446.96
  6. Step 6: Final answer
    x = 19,169.84

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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.