Home / 39,157.60-58,742.54-12,856.36

Finding the Fourth Proportional to 39,157.60, 58,742.54 and 12,856.36

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Solution

The fourth proportional to 39,157.60, 58,742.54 and 12,856.36 is: 19,286.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,157.60 : 58,742.54 = 12,856.36 : x
  2. Step 2: Convert to fraction form
    39,157.60/58,742.54 = 12,856.36/x
  3. Step 3: Cross multiply
    39,157.60x = 58,742.54 × 12,856.36
  4. Step 4: Simplify right side
    39,157.60x = 755,215,241.55
  5. Step 5: Solve for x
    x = 755,215,241.55/39,157.60
  6. Step 6: Final answer
    x = 19,286.56

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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.