Home / 30,123.32-41,518.25-20,033.71

Finding the Fourth Proportional to 30,123.32, 41,518.25 and 20,033.71

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Solution

The fourth proportional to 30,123.32, 41,518.25 and 20,033.71 is: 27,611.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,123.32 : 41,518.25 = 20,033.71 : x
  2. Step 2: Convert to fraction form
    30,123.32/41,518.25 = 20,033.71/x
  3. Step 3: Cross multiply
    30,123.32x = 41,518.25 × 20,033.71
  4. Step 4: Simplify right side
    30,123.32x = 831,764,372.62
  5. Step 5: Solve for x
    x = 831,764,372.62/30,123.32
  6. Step 6: Final answer
    x = 27,611.98

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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.