Home / 28,362.06-39,136.82-16,429.23

Finding the Fourth Proportional to 28,362.06, 39,136.82 and 16,429.23

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Solution

The fourth proportional to 28,362.06, 39,136.82 and 16,429.23 is: 22,670.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.06 : 39,136.82 = 16,429.23 : x
  2. Step 2: Convert to fraction form
    28,362.06/39,136.82 = 16,429.23/x
  3. Step 3: Cross multiply
    28,362.06x = 39,136.82 × 16,429.23
  4. Step 4: Simplify right side
    28,362.06x = 642,987,735.10
  5. Step 5: Solve for x
    x = 642,987,735.10/28,362.06
  6. Step 6: Final answer
    x = 22,670.70

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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.