Home / 43,289.45-64,936.20-13,709.60

Finding the Fourth Proportional to 43,289.45, 64,936.20 and 13,709.60

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Solution

The fourth proportional to 43,289.45, 64,936.20 and 13,709.60 is: 20,565.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,289.45 : 64,936.20 = 13,709.60 : x
  2. Step 2: Convert to fraction form
    43,289.45/64,936.20 = 13,709.60/x
  3. Step 3: Cross multiply
    43,289.45x = 64,936.20 × 13,709.60
  4. Step 4: Simplify right side
    43,289.45x = 890,249,327.52
  5. Step 5: Solve for x
    x = 890,249,327.52/43,289.45
  6. Step 6: Final answer
    x = 20,565.04

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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.