Home / 35,289.60-48,709.80-20,190.48

Finding the Fourth Proportional to 35,289.60, 48,709.80 and 20,190.48

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Solution

The fourth proportional to 35,289.60, 48,709.80 and 20,190.48 is: 27,868.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,289.60 : 48,709.80 = 20,190.48 : x
  2. Step 2: Convert to fraction form
    35,289.60/48,709.80 = 20,190.48/x
  3. Step 3: Cross multiply
    35,289.60x = 48,709.80 × 20,190.48
  4. Step 4: Simplify right side
    35,289.60x = 983,474,242.70
  5. Step 5: Solve for x
    x = 983,474,242.70/35,289.60
  6. Step 6: Final answer
    x = 27,868.67

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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.