Home / 30,196.21-45,354.68-18,212.32

Finding the Fourth Proportional to 30,196.21, 45,354.68 and 18,212.32

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Solution

The fourth proportional to 30,196.21, 45,354.68 and 18,212.32 is: 27,354.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,196.21 : 45,354.68 = 18,212.32 : x
  2. Step 2: Convert to fraction form
    30,196.21/45,354.68 = 18,212.32/x
  3. Step 3: Cross multiply
    30,196.21x = 45,354.68 × 18,212.32
  4. Step 4: Simplify right side
    30,196.21x = 826,013,945.66
  5. Step 5: Solve for x
    x = 826,013,945.66/30,196.21
  6. Step 6: Final answer
    x = 27,354.89

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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.