Home / 39,730.44-54,825.30-21,826.20

Finding the Fourth Proportional to 39,730.44, 54,825.30 and 21,826.20

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Solution

The fourth proportional to 39,730.44, 54,825.30 and 21,826.20 is: 30,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,730.44 : 54,825.30 = 21,826.20 : x
  2. Step 2: Convert to fraction form
    39,730.44/54,825.30 = 21,826.20/x
  3. Step 3: Cross multiply
    39,730.44x = 54,825.30 × 21,826.20
  4. Step 4: Simplify right side
    39,730.44x = 1,196,627,962.86
  5. Step 5: Solve for x
    x = 1,196,627,962.86/39,730.44
  6. Step 6: Final answer
    x = 30,118.67

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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.