Home / 21,971.93-32,955.39-6,389.55

Finding the Fourth Proportional to 21,971.93, 32,955.39 and 6,389.55

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Solution

The fourth proportional to 21,971.93, 32,955.39 and 6,389.55 is: 9,583.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,971.93 : 32,955.39 = 6,389.55 : x
  2. Step 2: Convert to fraction form
    21,971.93/32,955.39 = 6,389.55/x
  3. Step 3: Cross multiply
    21,971.93x = 32,955.39 × 6,389.55
  4. Step 4: Simplify right side
    21,971.93x = 210,570,112.17
  5. Step 5: Solve for x
    x = 210,570,112.17/21,971.93
  6. Step 6: Final answer
    x = 9,583.60

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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.