Home / 21,523.14-29,693.40-12,446.84

Finding the Fourth Proportional to 21,523.14, 29,693.40 and 12,446.84

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Solution

The fourth proportional to 21,523.14, 29,693.40 and 12,446.84 is: 17,171.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.14 : 29,693.40 = 12,446.84 : x
  2. Step 2: Convert to fraction form
    21,523.14/29,693.40 = 12,446.84/x
  3. Step 3: Cross multiply
    21,523.14x = 29,693.40 × 12,446.84
  4. Step 4: Simplify right side
    21,523.14x = 369,588,998.86
  5. Step 5: Solve for x
    x = 369,588,998.86/21,523.14
  6. Step 6: Final answer
    x = 17,171.70

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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.