Home / 45,318.12-67,986.89-19,007.70

Finding the Fourth Proportional to 45,318.12, 67,986.89 and 19,007.70

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Solution

The fourth proportional to 45,318.12, 67,986.89 and 19,007.70 is: 28,515.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,318.12 : 67,986.89 = 19,007.70 : x
  2. Step 2: Convert to fraction form
    45,318.12/67,986.89 = 19,007.70/x
  3. Step 3: Cross multiply
    45,318.12x = 67,986.89 × 19,007.70
  4. Step 4: Simplify right side
    45,318.12x = 1,292,274,409.05
  5. Step 5: Solve for x
    x = 1,292,274,409.05/45,318.12
  6. Step 6: Final answer
    x = 28,515.62

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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.