Home / 30,318.54-45,528.93-19,806.54

Finding the Fourth Proportional to 30,318.54, 45,528.93 and 19,806.54

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Solution

The fourth proportional to 30,318.54, 45,528.93 and 19,806.54 is: 29,743.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,318.54 : 45,528.93 = 19,806.54 : x
  2. Step 2: Convert to fraction form
    30,318.54/45,528.93 = 19,806.54/x
  3. Step 3: Cross multiply
    30,318.54x = 45,528.93 × 19,806.54
  4. Step 4: Simplify right side
    30,318.54x = 901,770,573.20
  5. Step 5: Solve for x
    x = 901,770,573.20/30,318.54
  6. Step 6: Final answer
    x = 29,743.21

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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.