Home / 21,435.99-29,575.88-12,361.11

Finding the Fourth Proportional to 21,435.99, 29,575.88 and 12,361.11

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Solution

The fourth proportional to 21,435.99, 29,575.88 and 12,361.11 is: 17,054.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,435.99 : 29,575.88 = 12,361.11 : x
  2. Step 2: Convert to fraction form
    21,435.99/29,575.88 = 12,361.11/x
  3. Step 3: Cross multiply
    21,435.99x = 29,575.88 × 12,361.11
  4. Step 4: Simplify right side
    21,435.99x = 365,590,644.22
  5. Step 5: Solve for x
    x = 365,590,644.22/21,435.99
  6. Step 6: Final answer
    x = 17,054.99

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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.