Home / 17,817.20-26,790.60-17,428.40

Finding the Fourth Proportional to 17,817.20, 26,790.60 and 17,428.40

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Solution

The fourth proportional to 17,817.20, 26,790.60 and 17,428.40 is: 26,205.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,817.20 : 26,790.60 = 17,428.40 : x
  2. Step 2: Convert to fraction form
    17,817.20/26,790.60 = 17,428.40/x
  3. Step 3: Cross multiply
    17,817.20x = 26,790.60 × 17,428.40
  4. Step 4: Simplify right side
    17,817.20x = 466,917,293.04
  5. Step 5: Solve for x
    x = 466,917,293.04/17,817.20
  6. Step 6: Final answer
    x = 26,205.99

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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.