Home / 30,278.21-45,380.25-22,859.42

Finding the Fourth Proportional to 30,278.21, 45,380.25 and 22,859.42

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Solution

The fourth proportional to 30,278.21, 45,380.25 and 22,859.42 is: 34,261.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278.21 : 45,380.25 = 22,859.42 : x
  2. Step 2: Convert to fraction form
    30,278.21/45,380.25 = 22,859.42/x
  3. Step 3: Cross multiply
    30,278.21x = 45,380.25 × 22,859.42
  4. Step 4: Simplify right side
    30,278.21x = 1,037,365,967.55
  5. Step 5: Solve for x
    x = 1,037,365,967.55/30,278.21
  6. Step 6: Final answer
    x = 34,261.14

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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.