Home / 21,028.60-31,546.14-9,941.32

Finding the Fourth Proportional to 21,028.60, 31,546.14 and 9,941.32

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Solution

The fourth proportional to 21,028.60, 31,546.14 and 9,941.32 is: 14,913.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,028.60 : 31,546.14 = 9,941.32 : x
  2. Step 2: Convert to fraction form
    21,028.60/31,546.14 = 9,941.32/x
  3. Step 3: Cross multiply
    21,028.60x = 31,546.14 × 9,941.32
  4. Step 4: Simplify right side
    21,028.60x = 313,610,272.50
  5. Step 5: Solve for x
    x = 313,610,272.50/21,028.60
  6. Step 6: Final answer
    x = 14,913.51

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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.