Home / 34,931.20-48,219.96-20,785.36

Finding the Fourth Proportional to 34,931.20, 48,219.96 and 20,785.36

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Solution

The fourth proportional to 34,931.20, 48,219.96 and 20,785.36 is: 28,692.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,931.20 : 48,219.96 = 20,785.36 : x
  2. Step 2: Convert to fraction form
    34,931.20/48,219.96 = 20,785.36/x
  3. Step 3: Cross multiply
    34,931.20x = 48,219.96 × 20,785.36
  4. Step 4: Simplify right side
    34,931.20x = 1,002,269,227.79
  5. Step 5: Solve for x
    x = 1,002,269,227.79/34,931.20
  6. Step 6: Final answer
    x = 28,692.67

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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.