Home / 21,029.65-31,539.60-6,235.00

Finding the Fourth Proportional to 21,029.65, 31,539.60 and 6,235.00

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Solution

The fourth proportional to 21,029.65, 31,539.60 and 6,235.00 is: 9,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.65 : 31,539.60 = 6,235.00 : x
  2. Step 2: Convert to fraction form
    21,029.65/31,539.60 = 6,235.00/x
  3. Step 3: Cross multiply
    21,029.65x = 31,539.60 × 6,235.00
  4. Step 4: Simplify right side
    21,029.65x = 196,649,327.15
  5. Step 5: Solve for x
    x = 196,649,327.15/21,029.65
  6. Step 6: Final answer
    x = 9,351.05

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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.