Home / 21,273.08-31,913.50-6,480.32

Finding the Fourth Proportional to 21,273.08, 31,913.50 and 6,480.32

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Solution

The fourth proportional to 21,273.08, 31,913.50 and 6,480.32 is: 9,721.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,273.08 : 31,913.50 = 6,480.32 : x
  2. Step 2: Convert to fraction form
    21,273.08/31,913.50 = 6,480.32/x
  3. Step 3: Cross multiply
    21,273.08x = 31,913.50 × 6,480.32
  4. Step 4: Simplify right side
    21,273.08x = 206,809,692.32
  5. Step 5: Solve for x
    x = 206,809,692.32/21,273.08
  6. Step 6: Final answer
    x = 9,721.66

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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.