Home / 50,018.40-75,027.78-20,436.30

Finding the Fourth Proportional to 50,018.40, 75,027.78 and 20,436.30

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Solution

The fourth proportional to 50,018.40, 75,027.78 and 20,436.30 is: 30,654.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,018.40 : 75,027.78 = 20,436.30 : x
  2. Step 2: Convert to fraction form
    50,018.40/75,027.78 = 20,436.30/x
  3. Step 3: Cross multiply
    50,018.40x = 75,027.78 × 20,436.30
  4. Step 4: Simplify right side
    50,018.40x = 1,533,290,220.41
  5. Step 5: Solve for x
    x = 1,533,290,220.41/50,018.40
  6. Step 6: Final answer
    x = 30,654.52

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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.