Home / 21,040.32-31,555.05-6,245.89

Finding the Fourth Proportional to 21,040.32, 31,555.05 and 6,245.89

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Solution

The fourth proportional to 21,040.32, 31,555.05 and 6,245.89 is: 9,367.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,040.32 : 31,555.05 = 6,245.89 : x
  2. Step 2: Convert to fraction form
    21,040.32/31,555.05 = 6,245.89/x
  3. Step 3: Cross multiply
    21,040.32x = 31,555.05 × 6,245.89
  4. Step 4: Simplify right side
    21,040.32x = 197,089,371.24
  5. Step 5: Solve for x
    x = 197,089,371.24/21,040.32
  6. Step 6: Final answer
    x = 9,367.23

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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.