Home / 20,745.40-31,099.20-7,594.60

Finding the Fourth Proportional to 20,745.40, 31,099.20 and 7,594.60

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Solution

The fourth proportional to 20,745.40, 31,099.20 and 7,594.60 is: 11,384.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,745.40 : 31,099.20 = 7,594.60 : x
  2. Step 2: Convert to fraction form
    20,745.40/31,099.20 = 7,594.60/x
  3. Step 3: Cross multiply
    20,745.40x = 31,099.20 × 7,594.60
  4. Step 4: Simplify right side
    20,745.40x = 236,185,984.32
  5. Step 5: Solve for x
    x = 236,185,984.32/20,745.40
  6. Step 6: Final answer
    x = 11,384.98

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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.