Home / 19,739.81-29,611.71-6,412.25

Finding the Fourth Proportional to 19,739.81, 29,611.71 and 6,412.25

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Solution

The fourth proportional to 19,739.81, 29,611.71 and 6,412.25 is: 9,619.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,739.81 : 29,611.71 = 6,412.25 : x
  2. Step 2: Convert to fraction form
    19,739.81/29,611.71 = 6,412.25/x
  3. Step 3: Cross multiply
    19,739.81x = 29,611.71 × 6,412.25
  4. Step 4: Simplify right side
    19,739.81x = 189,877,761.48
  5. Step 5: Solve for x
    x = 189,877,761.48/19,739.81
  6. Step 6: Final answer
    x = 9,619.03

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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.