Home / 30,213.12-45,281.22-17,072.82

Finding the Fourth Proportional to 30,213.12, 45,281.22 and 17,072.82

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Solution

The fourth proportional to 30,213.12, 45,281.22 and 17,072.82 is: 25,587.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,213.12 : 45,281.22 = 17,072.82 : x
  2. Step 2: Convert to fraction form
    30,213.12/45,281.22 = 17,072.82/x
  3. Step 3: Cross multiply
    30,213.12x = 45,281.22 × 17,072.82
  4. Step 4: Simplify right side
    30,213.12x = 773,078,118.44
  5. Step 5: Solve for x
    x = 773,078,118.44/30,213.12
  6. Step 6: Final answer
    x = 25,587.50

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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.