Home / 30,090.58-45,146.67-13,449.22

Finding the Fourth Proportional to 30,090.58, 45,146.67 and 13,449.22

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Solution

The fourth proportional to 30,090.58, 45,146.67 and 13,449.22 is: 20,178.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.58 : 45,146.67 = 13,449.22 : x
  2. Step 2: Convert to fraction form
    30,090.58/45,146.67 = 13,449.22/x
  3. Step 3: Cross multiply
    30,090.58x = 45,146.67 × 13,449.22
  4. Step 4: Simplify right side
    30,090.58x = 607,187,497.10
  5. Step 5: Solve for x
    x = 607,187,497.10/30,090.58
  6. Step 6: Final answer
    x = 20,178.66

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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.