Home / 30,083.45-45,141.57-13,442.81

Finding the Fourth Proportional to 30,083.45, 45,141.57 and 13,442.81

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Solution

The fourth proportional to 30,083.45, 45,141.57 and 13,442.81 is: 20,171.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,083.45 : 45,141.57 = 13,442.81 : x
  2. Step 2: Convert to fraction form
    30,083.45/45,141.57 = 13,442.81/x
  3. Step 3: Cross multiply
    30,083.45x = 45,141.57 × 13,442.81
  4. Step 4: Simplify right side
    30,083.45x = 606,829,322.90
  5. Step 5: Solve for x
    x = 606,829,322.90/30,083.45
  6. Step 6: Final answer
    x = 20,171.54

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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.