Home / 21,173.73-31,772.89-9,486.95

Finding the Fourth Proportional to 21,173.73, 31,772.89 and 9,486.95

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Solution

The fourth proportional to 21,173.73, 31,772.89 and 9,486.95 is: 14,235.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,173.73 : 31,772.89 = 9,486.95 : x
  2. Step 2: Convert to fraction form
    21,173.73/31,772.89 = 9,486.95/x
  3. Step 3: Cross multiply
    21,173.73x = 31,772.89 × 9,486.95
  4. Step 4: Simplify right side
    21,173.73x = 301,427,749.14
  5. Step 5: Solve for x
    x = 301,427,749.14/21,173.73
  6. Step 6: Final answer
    x = 14,235.93

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1.5x scale

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.