Home / 28,812.48-39,764.86-16,880.38

Finding the Fourth Proportional to 28,812.48, 39,764.86 and 16,880.38

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Solution

The fourth proportional to 28,812.48, 39,764.86 and 16,880.38 is: 23,297.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,812.48 : 39,764.86 = 16,880.38 : x
  2. Step 2: Convert to fraction form
    28,812.48/39,764.86 = 16,880.38/x
  3. Step 3: Cross multiply
    28,812.48x = 39,764.86 × 16,880.38
  4. Step 4: Simplify right side
    28,812.48x = 671,245,947.45
  5. Step 5: Solve for x
    x = 671,245,947.45/28,812.48
  6. Step 6: Final answer
    x = 23,297.06

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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.