Home / 42,684.20-63,896.70-38,018.60

Finding the Fourth Proportional to 42,684.20, 63,896.70 and 38,018.60

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Solution

The fourth proportional to 42,684.20, 63,896.70 and 38,018.60 is: 56,912.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,684.20 : 63,896.70 = 38,018.60 : x
  2. Step 2: Convert to fraction form
    42,684.20/63,896.70 = 38,018.60/x
  3. Step 3: Cross multiply
    42,684.20x = 63,896.70 × 38,018.60
  4. Step 4: Simplify right side
    42,684.20x = 2,429,263,078.62
  5. Step 5: Solve for x
    x = 2,429,263,078.62/42,684.20
  6. Step 6: Final answer
    x = 56,912.47

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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.