Home / 20,850.58-31,254-15,295.60

Finding the Fourth Proportional to 20,850.58, 31,254 and 15,295.60

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Solution

The fourth proportional to 20,850.58, 31,254 and 15,295.60 is: 22,927.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850.58 : 31,254 = 15,295.60 : x
  2. Step 2: Convert to fraction form
    20,850.58/31,254 = 15,295.60/x
  3. Step 3: Cross multiply
    20,850.58x = 31,254 × 15,295.60
  4. Step 4: Simplify right side
    20,850.58x = 478,048,682.40
  5. Step 5: Solve for x
    x = 478,048,682.40/20,850.58
  6. Step 6: Final answer
    x = 22,927.36

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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.