Home / 30,158.87-41,591.97-18,829.40

Finding the Fourth Proportional to 30,158.87, 41,591.97 and 18,829.40

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Solution

The fourth proportional to 30,158.87, 41,591.97 and 18,829.40 is: 25,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,158.87 : 41,591.97 = 18,829.40 : x
  2. Step 2: Convert to fraction form
    30,158.87/41,591.97 = 18,829.40/x
  3. Step 3: Cross multiply
    30,158.87x = 41,591.97 × 18,829.40
  4. Step 4: Simplify right side
    30,158.87x = 783,151,631.96
  5. Step 5: Solve for x
    x = 783,151,631.96/30,158.87
  6. Step 6: Final answer
    x = 25,967.54

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1.5x scale

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.