Home / 30,057.12-45,096.04-13,428.63

Finding the Fourth Proportional to 30,057.12, 45,096.04 and 13,428.63

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Solution

The fourth proportional to 30,057.12, 45,096.04 and 13,428.63 is: 20,147.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,057.12 : 45,096.04 = 13,428.63 : x
  2. Step 2: Convert to fraction form
    30,057.12/45,096.04 = 13,428.63/x
  3. Step 3: Cross multiply
    30,057.12x = 45,096.04 × 13,428.63
  4. Step 4: Simplify right side
    30,057.12x = 605,578,035.63
  5. Step 5: Solve for x
    x = 605,578,035.63/30,057.12
  6. Step 6: Final answer
    x = 20,147.57

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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.