Home / 21,980.26-32,971.29-6,397.89

Finding the Fourth Proportional to 21,980.26, 32,971.29 and 6,397.89

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Solution

The fourth proportional to 21,980.26, 32,971.29 and 6,397.89 is: 9,597.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,980.26 : 32,971.29 = 6,397.89 : x
  2. Step 2: Convert to fraction form
    21,980.26/32,971.29 = 6,397.89/x
  3. Step 3: Cross multiply
    21,980.26x = 32,971.29 × 6,397.89
  4. Step 4: Simplify right side
    21,980.26x = 210,946,686.58
  5. Step 5: Solve for x
    x = 210,946,686.58/21,980.26
  6. Step 6: Final answer
    x = 9,597.10

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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.