Home / 21,054.86-31,576.80-6,259.81

Finding the Fourth Proportional to 21,054.86, 31,576.80 and 6,259.81

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Solution

The fourth proportional to 21,054.86, 31,576.80 and 6,259.81 is: 9,388.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.86 : 31,576.80 = 6,259.81 : x
  2. Step 2: Convert to fraction form
    21,054.86/31,576.80 = 6,259.81/x
  3. Step 3: Cross multiply
    21,054.86x = 31,576.80 × 6,259.81
  4. Step 4: Simplify right side
    21,054.86x = 197,664,768.41
  5. Step 5: Solve for x
    x = 197,664,768.41/21,054.86
  6. Step 6: Final answer
    x = 9,388.08

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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.