Home / 30,168.06-45,257.96-9,109.80

Finding the Fourth Proportional to 30,168.06, 45,257.96 and 9,109.80

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Solution

The fourth proportional to 30,168.06, 45,257.96 and 9,109.80 is: 13,666.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,168.06 : 45,257.96 = 9,109.80 : x
  2. Step 2: Convert to fraction form
    30,168.06/45,257.96 = 9,109.80/x
  3. Step 3: Cross multiply
    30,168.06x = 45,257.96 × 9,109.80
  4. Step 4: Simplify right side
    30,168.06x = 412,290,964.01
  5. Step 5: Solve for x
    x = 412,290,964.01/30,168.06
  6. Step 6: Final answer
    x = 13,666.47

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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.