Home / 21,080.25-31,626.45-7,041.33

Finding the Fourth Proportional to 21,080.25, 31,626.45 and 7,041.33

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Solution

The fourth proportional to 21,080.25, 31,626.45 and 7,041.33 is: 10,564.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,080.25 : 31,626.45 = 7,041.33 : x
  2. Step 2: Convert to fraction form
    21,080.25/31,626.45 = 7,041.33/x
  3. Step 3: Cross multiply
    21,080.25x = 31,626.45 × 7,041.33
  4. Step 4: Simplify right side
    21,080.25x = 222,692,271.18
  5. Step 5: Solve for x
    x = 222,692,271.18/21,080.25
  6. Step 6: Final answer
    x = 10,564.02

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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.