Home / 30,571.40-42,197.28-18,003.44

Finding the Fourth Proportional to 30,571.40, 42,197.28 and 18,003.44

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Solution

The fourth proportional to 30,571.40, 42,197.28 and 18,003.44 is: 24,849.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,571.40 : 42,197.28 = 18,003.44 : x
  2. Step 2: Convert to fraction form
    30,571.40/42,197.28 = 18,003.44/x
  3. Step 3: Cross multiply
    30,571.40x = 42,197.28 × 18,003.44
  4. Step 4: Simplify right side
    30,571.40x = 759,696,198.64
  5. Step 5: Solve for x
    x = 759,696,198.64/30,571.40
  6. Step 6: Final answer
    x = 24,849.90

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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.