Home / 30,284.21-45,429.32-11,579.99

Finding the Fourth Proportional to 30,284.21, 45,429.32 and 11,579.99

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Solution

The fourth proportional to 30,284.21, 45,429.32 and 11,579.99 is: 17,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,284.21 : 45,429.32 = 11,579.99 : x
  2. Step 2: Convert to fraction form
    30,284.21/45,429.32 = 11,579.99/x
  3. Step 3: Cross multiply
    30,284.21x = 45,429.32 × 11,579.99
  4. Step 4: Simplify right side
    30,284.21x = 526,070,873.11
  5. Step 5: Solve for x
    x = 526,070,873.11/30,284.21
  6. Step 6: Final answer
    x = 17,371.13

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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.