Home / 25,716.96-35,438.04-21,684.06

Finding the Fourth Proportional to 25,716.96, 35,438.04 and 21,684.06

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Solution

The fourth proportional to 25,716.96, 35,438.04 and 21,684.06 is: 29,880.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,716.96 : 35,438.04 = 21,684.06 : x
  2. Step 2: Convert to fraction form
    25,716.96/35,438.04 = 21,684.06/x
  3. Step 3: Cross multiply
    25,716.96x = 35,438.04 × 21,684.06
  4. Step 4: Simplify right side
    25,716.96x = 768,440,585.64
  5. Step 5: Solve for x
    x = 768,440,585.64/25,716.96
  6. Step 6: Final answer
    x = 29,880.69

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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.