Home / 28,912-39,896.34-17,579.92

Finding the Fourth Proportional to 28,912, 39,896.34 and 17,579.92

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Solution

The fourth proportional to 28,912, 39,896.34 and 17,579.92 is: 24,258.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,912 : 39,896.34 = 17,579.92 : x
  2. Step 2: Convert to fraction form
    28,912/39,896.34 = 17,579.92/x
  3. Step 3: Cross multiply
    28,912x = 39,896.34 × 17,579.92
  4. Step 4: Simplify right side
    28,912x = 701,374,465.49
  5. Step 5: Solve for x
    x = 701,374,465.49/28,912
  6. Step 6: Final answer
    x = 24,258.94

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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.