Home / 30,872.12-46,307.82-7,498.58

Finding the Fourth Proportional to 30,872.12, 46,307.82 and 7,498.58

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Solution

The fourth proportional to 30,872.12, 46,307.82 and 7,498.58 is: 11,247.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,872.12 : 46,307.82 = 7,498.58 : x
  2. Step 2: Convert to fraction form
    30,872.12/46,307.82 = 7,498.58/x
  3. Step 3: Cross multiply
    30,872.12x = 46,307.82 × 7,498.58
  4. Step 4: Simplify right side
    30,872.12x = 347,242,892.90
  5. Step 5: Solve for x
    x = 347,242,892.90/30,872.12
  6. Step 6: Final answer
    x = 11,247.78

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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.