Home / 21,395.94-29,525.84-11,835.58

Finding the Fourth Proportional to 21,395.94, 29,525.84 and 11,835.58

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Solution

The fourth proportional to 21,395.94, 29,525.84 and 11,835.58 is: 16,332.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,395.94 : 29,525.84 = 11,835.58 : x
  2. Step 2: Convert to fraction form
    21,395.94/29,525.84 = 11,835.58/x
  3. Step 3: Cross multiply
    21,395.94x = 29,525.84 × 11,835.58
  4. Step 4: Simplify right side
    21,395.94x = 349,455,419.35
  5. Step 5: Solve for x
    x = 349,455,419.35/21,395.94
  6. Step 6: Final answer
    x = 16,332.79

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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.