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Finding the Fourth Proportional to 34,018.20, 51,028.20 and 10,645.20

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Solution

The fourth proportional to 34,018.20, 51,028.20 and 10,645.20 is: 15,968.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,018.20 : 51,028.20 = 10,645.20 : x
  2. Step 2: Convert to fraction form
    34,018.20/51,028.20 = 10,645.20/x
  3. Step 3: Cross multiply
    34,018.20x = 51,028.20 × 10,645.20
  4. Step 4: Simplify right side
    34,018.20x = 543,205,394.64
  5. Step 5: Solve for x
    x = 543,205,394.64/34,018.20
  6. Step 6: Final answer
    x = 15,968.08

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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.