Home / 21,704.27-29,898.27-18,507.15

Finding the Fourth Proportional to 21,704.27, 29,898.27 and 18,507.15

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Solution

The fourth proportional to 21,704.27, 29,898.27 and 18,507.15 is: 25,494.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,704.27 : 29,898.27 = 18,507.15 : x
  2. Step 2: Convert to fraction form
    21,704.27/29,898.27 = 18,507.15/x
  3. Step 3: Cross multiply
    21,704.27x = 29,898.27 × 18,507.15
  4. Step 4: Simplify right side
    21,704.27x = 553,331,767.63
  5. Step 5: Solve for x
    x = 553,331,767.63/21,704.27
  6. Step 6: Final answer
    x = 25,494.15

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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.