Home / 38,896.40-58,344.60-31,120.40

Finding the Fourth Proportional to 38,896.40, 58,344.60 and 31,120.40

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Solution

The fourth proportional to 38,896.40, 58,344.60 and 31,120.40 is: 46,680.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,896.40 : 58,344.60 = 31,120.40 : x
  2. Step 2: Convert to fraction form
    38,896.40/58,344.60 = 31,120.40/x
  3. Step 3: Cross multiply
    38,896.40x = 58,344.60 × 31,120.40
  4. Step 4: Simplify right side
    38,896.40x = 1,815,707,289.84
  5. Step 5: Solve for x
    x = 1,815,707,289.84/38,896.40
  6. Step 6: Final answer
    x = 46,680.60

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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.