Home / 19,682.05-29,507.71-13,426.55

Finding the Fourth Proportional to 19,682.05, 29,507.71 and 13,426.55

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Solution

The fourth proportional to 19,682.05, 29,507.71 and 13,426.55 is: 20,129.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,682.05 : 29,507.71 = 13,426.55 : x
  2. Step 2: Convert to fraction form
    19,682.05/29,507.71 = 13,426.55/x
  3. Step 3: Cross multiply
    19,682.05x = 29,507.71 × 13,426.55
  4. Step 4: Simplify right side
    19,682.05x = 396,186,676.57
  5. Step 5: Solve for x
    x = 396,186,676.57/19,682.05
  6. Step 6: Final answer
    x = 20,129.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.