Home / 17,428.12-26,142.27-4,280.49

Finding the Fourth Proportional to 17,428.12, 26,142.27 and 4,280.49

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Solution

The fourth proportional to 17,428.12, 26,142.27 and 4,280.49 is: 6,420.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,428.12 : 26,142.27 = 4,280.49 : x
  2. Step 2: Convert to fraction form
    17,428.12/26,142.27 = 4,280.49/x
  3. Step 3: Cross multiply
    17,428.12x = 26,142.27 × 4,280.49
  4. Step 4: Simplify right side
    17,428.12x = 111,901,725.31
  5. Step 5: Solve for x
    x = 111,901,725.31/17,428.12
  6. Step 6: Final answer
    x = 6,420.76

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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.