Home / 19,338.18-28,977.08-13,426.59

Finding the Fourth Proportional to 19,338.18, 28,977.08 and 13,426.59

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Solution

The fourth proportional to 19,338.18, 28,977.08 and 13,426.59 is: 20,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,338.18 : 28,977.08 = 13,426.59 : x
  2. Step 2: Convert to fraction form
    19,338.18/28,977.08 = 13,426.59/x
  3. Step 3: Cross multiply
    19,338.18x = 28,977.08 × 13,426.59
  4. Step 4: Simplify right side
    19,338.18x = 389,063,414.09
  5. Step 5: Solve for x
    x = 389,063,414.09/19,338.18
  6. Step 6: Final answer
    x = 20,118.93

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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.