Home / 30,901.05-46,334.30-12,428.73

Finding the Fourth Proportional to 30,901.05, 46,334.30 and 12,428.73

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Solution

The fourth proportional to 30,901.05, 46,334.30 and 12,428.73 is: 18,636.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,901.05 : 46,334.30 = 12,428.73 : x
  2. Step 2: Convert to fraction form
    30,901.05/46,334.30 = 12,428.73/x
  3. Step 3: Cross multiply
    30,901.05x = 46,334.30 × 12,428.73
  4. Step 4: Simplify right side
    30,901.05x = 575,876,442.30
  5. Step 5: Solve for x
    x = 575,876,442.30/30,901.05
  6. Step 6: Final answer
    x = 18,636.14

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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.