Home / 21,184.63-31,777.77-6,393.54

Finding the Fourth Proportional to 21,184.63, 31,777.77 and 6,393.54

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Solution

The fourth proportional to 21,184.63, 31,777.77 and 6,393.54 is: 9,590.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.63 : 31,777.77 = 6,393.54 : x
  2. Step 2: Convert to fraction form
    21,184.63/31,777.77 = 6,393.54/x
  3. Step 3: Cross multiply
    21,184.63x = 31,777.77 × 6,393.54
  4. Step 4: Simplify right side
    21,184.63x = 203,172,586.75
  5. Step 5: Solve for x
    x = 203,172,586.75/21,184.63
  6. Step 6: Final answer
    x = 9,590.57

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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.