Home / 21,235.85-29,303.67-11,675.22

Finding the Fourth Proportional to 21,235.85, 29,303.67 and 11,675.22

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Solution

The fourth proportional to 21,235.85, 29,303.67 and 11,675.22 is: 16,110.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235.85 : 29,303.67 = 11,675.22 : x
  2. Step 2: Convert to fraction form
    21,235.85/29,303.67 = 11,675.22/x
  3. Step 3: Cross multiply
    21,235.85x = 29,303.67 × 11,675.22
  4. Step 4: Simplify right side
    21,235.85x = 342,126,794.06
  5. Step 5: Solve for x
    x = 342,126,794.06/21,235.85
  6. Step 6: Final answer
    x = 16,110.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.