Home / 21,235.22-31,852.11-7,383.86

Finding the Fourth Proportional to 21,235.22, 31,852.11 and 7,383.86

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Solution

The fourth proportional to 21,235.22, 31,852.11 and 7,383.86 is: 11,075.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.22 : 31,852.11 = 7,383.86 : x
  2. Step 2: Convert to fraction form
    21,235.22/31,852.11 = 7,383.86/x
  3. Step 3: Cross multiply
    21,235.22x = 31,852.11 × 7,383.86
  4. Step 4: Simplify right side
    21,235.22x = 235,191,520.94
  5. Step 5: Solve for x
    x = 235,191,520.94/21,235.22
  6. Step 6: Final answer
    x = 11,075.54

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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.