Home / 30,149.12-45,208.50-17,672.12

Finding the Fourth Proportional to 30,149.12, 45,208.50 and 17,672.12

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Solution

The fourth proportional to 30,149.12, 45,208.50 and 17,672.12 is: 26,499.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,149.12 : 45,208.50 = 17,672.12 : x
  2. Step 2: Convert to fraction form
    30,149.12/45,208.50 = 17,672.12/x
  3. Step 3: Cross multiply
    30,149.12x = 45,208.50 × 17,672.12
  4. Step 4: Simplify right side
    30,149.12x = 798,930,037.02
  5. Step 5: Solve for x
    x = 798,930,037.02/30,149.12
  6. Step 6: Final answer
    x = 26,499.28

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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.