Home / 21,153.03-31,725.09-6,357.57

Finding the Fourth Proportional to 21,153.03, 31,725.09 and 6,357.57

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Solution

The fourth proportional to 21,153.03, 31,725.09 and 6,357.57 is: 9,535.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,153.03 : 31,725.09 = 6,357.57 : x
  2. Step 2: Convert to fraction form
    21,153.03/31,725.09 = 6,357.57/x
  3. Step 3: Cross multiply
    21,153.03x = 31,725.09 × 6,357.57
  4. Step 4: Simplify right side
    21,153.03x = 201,694,480.43
  5. Step 5: Solve for x
    x = 201,694,480.43/21,153.03
  6. Step 6: Final answer
    x = 9,535.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.