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Finding the Fourth Proportional to 37,994.40, 57,008 and 20,460.74

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Solution

The fourth proportional to 37,994.40, 57,008 and 20,460.74 is: 30,699.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,994.40 : 57,008 = 20,460.74 : x
  2. Step 2: Convert to fraction form
    37,994.40/57,008 = 20,460.74/x
  3. Step 3: Cross multiply
    37,994.40x = 57,008 × 20,460.74
  4. Step 4: Simplify right side
    37,994.40x = 1,166,425,865.92
  5. Step 5: Solve for x
    x = 1,166,425,865.92/37,994.40
  6. Step 6: Final answer
    x = 30,699.94

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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.