Home / 28,208.88-42,307.83-10,680.08

Finding the Fourth Proportional to 28,208.88, 42,307.83 and 10,680.08

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Solution

The fourth proportional to 28,208.88, 42,307.83 and 10,680.08 is: 16,018.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,208.88 : 42,307.83 = 10,680.08 : x
  2. Step 2: Convert to fraction form
    28,208.88/42,307.83 = 10,680.08/x
  3. Step 3: Cross multiply
    28,208.88x = 42,307.83 × 10,680.08
  4. Step 4: Simplify right side
    28,208.88x = 451,850,797.49
  5. Step 5: Solve for x
    x = 451,850,797.49/28,208.88
  6. Step 6: Final answer
    x = 16,018.03

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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.