Home / 30,131.58-45,202.82-10,412.12

Finding the Fourth Proportional to 30,131.58, 45,202.82 and 10,412.12

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Solution

The fourth proportional to 30,131.58, 45,202.82 and 10,412.12 is: 15,620.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,131.58 : 45,202.82 = 10,412.12 : x
  2. Step 2: Convert to fraction form
    30,131.58/45,202.82 = 10,412.12/x
  3. Step 3: Cross multiply
    30,131.58x = 45,202.82 × 10,412.12
  4. Step 4: Simplify right side
    30,131.58x = 470,657,186.18
  5. Step 5: Solve for x
    x = 470,657,186.18/30,131.58
  6. Step 6: Final answer
    x = 15,620.06

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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.