Home / 30,021.10-45,037.68-8,961.46

Finding the Fourth Proportional to 30,021.10, 45,037.68 and 8,961.46

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Solution

The fourth proportional to 30,021.10, 45,037.68 and 8,961.46 is: 13,443.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,021.10 : 45,037.68 = 8,961.46 : x
  2. Step 2: Convert to fraction form
    30,021.10/45,037.68 = 8,961.46/x
  3. Step 3: Cross multiply
    30,021.10x = 45,037.68 × 8,961.46
  4. Step 4: Simplify right side
    30,021.10x = 403,603,367.81
  5. Step 5: Solve for x
    x = 403,603,367.81/30,021.10
  6. Step 6: Final answer
    x = 13,443.99

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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.