Home / 21,525.38-29,705.38-11,835.25

Finding the Fourth Proportional to 21,525.38, 29,705.38 and 11,835.25

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Solution

The fourth proportional to 21,525.38, 29,705.38 and 11,835.25 is: 16,332.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,525.38 : 29,705.38 = 11,835.25 : x
  2. Step 2: Convert to fraction form
    21,525.38/29,705.38 = 11,835.25/x
  3. Step 3: Cross multiply
    21,525.38x = 29,705.38 × 11,835.25
  4. Step 4: Simplify right side
    21,525.38x = 351,570,562.10
  5. Step 5: Solve for x
    x = 351,570,562.10/21,525.38
  6. Step 6: Final answer
    x = 16,332.84

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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.