Home / 30,090.81-41,530.01-17,170.11

Finding the Fourth Proportional to 30,090.81, 41,530.01 and 17,170.11

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Solution

The fourth proportional to 30,090.81, 41,530.01 and 17,170.11 is: 23,697.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,090.81 : 41,530.01 = 17,170.11 : x
  2. Step 2: Convert to fraction form
    30,090.81/41,530.01 = 17,170.11/x
  3. Step 3: Cross multiply
    30,090.81x = 41,530.01 × 17,170.11
  4. Step 4: Simplify right side
    30,090.81x = 713,074,754.15
  5. Step 5: Solve for x
    x = 713,074,754.15/30,090.81
  6. Step 6: Final answer
    x = 23,697.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.