Home / 28,945.66-39,946.48-17,012.84

Finding the Fourth Proportional to 28,945.66, 39,946.48 and 17,012.84

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Solution

The fourth proportional to 28,945.66, 39,946.48 and 17,012.84 is: 23,478.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,945.66 : 39,946.48 = 17,012.84 : x
  2. Step 2: Convert to fraction form
    28,945.66/39,946.48 = 17,012.84/x
  3. Step 3: Cross multiply
    28,945.66x = 39,946.48 × 17,012.84
  4. Step 4: Simplify right side
    28,945.66x = 679,603,072.80
  5. Step 5: Solve for x
    x = 679,603,072.80/28,945.66
  6. Step 6: Final answer
    x = 23,478.58

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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.