Home / 21,276.44-31,918.12-6,285.08

Finding the Fourth Proportional to 21,276.44, 31,918.12 and 6,285.08

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Solution

The fourth proportional to 21,276.44, 31,918.12 and 6,285.08 is: 9,428.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,276.44 : 31,918.12 = 6,285.08 : x
  2. Step 2: Convert to fraction form
    21,276.44/31,918.12 = 6,285.08/x
  3. Step 3: Cross multiply
    21,276.44x = 31,918.12 × 6,285.08
  4. Step 4: Simplify right side
    21,276.44x = 200,607,746.63
  5. Step 5: Solve for x
    x = 200,607,746.63/21,276.44
  6. Step 6: Final answer
    x = 9,428.64

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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.