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Finding the Fourth Proportional to 21,446.30, 29,595.90 and 12,014.87

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Solution

The fourth proportional to 21,446.30, 29,595.90 and 12,014.87 is: 16,580.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,446.30 : 29,595.90 = 12,014.87 : x
  2. Step 2: Convert to fraction form
    21,446.30/29,595.90 = 12,014.87/x
  3. Step 3: Cross multiply
    21,446.30x = 29,595.90 × 12,014.87
  4. Step 4: Simplify right side
    21,446.30x = 355,590,743.05
  5. Step 5: Solve for x
    x = 355,590,743.05/21,446.30
  6. Step 6: Final answer
    x = 16,580.52

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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.