Home / 21,054.93-31,601.52-11,202.45

Finding the Fourth Proportional to 21,054.93, 31,601.52 and 11,202.45

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Solution

The fourth proportional to 21,054.93, 31,601.52 and 11,202.45 is: 16,813.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,054.93 : 31,601.52 = 11,202.45 : x
  2. Step 2: Convert to fraction form
    21,054.93/31,601.52 = 11,202.45/x
  3. Step 3: Cross multiply
    21,054.93x = 31,601.52 × 11,202.45
  4. Step 4: Simplify right side
    21,054.93x = 354,014,447.72
  5. Step 5: Solve for x
    x = 354,014,447.72/21,054.93
  6. Step 6: Final answer
    x = 16,813.85

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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.