Home / 20,683.74-31,015.35-7,354.73

Finding the Fourth Proportional to 20,683.74, 31,015.35 and 7,354.73

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Solution

The fourth proportional to 20,683.74, 31,015.35 and 7,354.73 is: 11,028.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683.74 : 31,015.35 = 7,354.73 : x
  2. Step 2: Convert to fraction form
    20,683.74/31,015.35 = 7,354.73/x
  3. Step 3: Cross multiply
    20,683.74x = 31,015.35 × 7,354.73
  4. Step 4: Simplify right side
    20,683.74x = 228,109,525.11
  5. Step 5: Solve for x
    x = 228,109,525.11/20,683.74
  6. Step 6: Final answer
    x = 11,028.45

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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.