Home / 30,181.29-45,254.38-20,197.45

Finding the Fourth Proportional to 30,181.29, 45,254.38 and 20,197.45

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Solution

The fourth proportional to 30,181.29, 45,254.38 and 20,197.45 is: 30,284.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,181.29 : 45,254.38 = 20,197.45 : x
  2. Step 2: Convert to fraction form
    30,181.29/45,254.38 = 20,197.45/x
  3. Step 3: Cross multiply
    30,181.29x = 45,254.38 × 20,197.45
  4. Step 4: Simplify right side
    30,181.29x = 914,023,014.69
  5. Step 5: Solve for x
    x = 914,023,014.69/30,181.29
  6. Step 6: Final answer
    x = 30,284.43

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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.