Home / 28,485.51-39,310.97-17,880.99

Finding the Fourth Proportional to 28,485.51, 39,310.97 and 17,880.99

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Solution

The fourth proportional to 28,485.51, 39,310.97 and 17,880.99 is: 24,676.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,485.51 : 39,310.97 = 17,880.99 : x
  2. Step 2: Convert to fraction form
    28,485.51/39,310.97 = 17,880.99/x
  3. Step 3: Cross multiply
    28,485.51x = 39,310.97 × 17,880.99
  4. Step 4: Simplify right side
    28,485.51x = 702,918,925.22
  5. Step 5: Solve for x
    x = 702,918,925.22/28,485.51
  6. Step 6: Final answer
    x = 24,676.37

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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.