Home / 38,187.42-57,219.57-20,665.50

Finding the Fourth Proportional to 38,187.42, 57,219.57 and 20,665.50

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Solution

The fourth proportional to 38,187.42, 57,219.57 and 20,665.50 is: 30,964.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,187.42 : 57,219.57 = 20,665.50 : x
  2. Step 2: Convert to fraction form
    38,187.42/57,219.57 = 20,665.50/x
  3. Step 3: Cross multiply
    38,187.42x = 57,219.57 × 20,665.50
  4. Step 4: Simplify right side
    38,187.42x = 1,182,471,023.84
  5. Step 5: Solve for x
    x = 1,182,471,023.84/38,187.42
  6. Step 6: Final answer
    x = 30,964.94

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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.