Home / 28,920.54-39,911.85-17,588.19

Finding the Fourth Proportional to 28,920.54, 39,911.85 and 17,588.19

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Solution

The fourth proportional to 28,920.54, 39,911.85 and 17,588.19 is: 24,272.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,920.54 : 39,911.85 = 17,588.19 : x
  2. Step 2: Convert to fraction form
    28,920.54/39,911.85 = 17,588.19/x
  3. Step 3: Cross multiply
    28,920.54x = 39,911.85 × 17,588.19
  4. Step 4: Simplify right side
    28,920.54x = 701,977,201.05
  5. Step 5: Solve for x
    x = 701,977,201.05/28,920.54
  6. Step 6: Final answer
    x = 24,272.62

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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.