Home / 28,851.68-39,794.80-18,761.48

Finding the Fourth Proportional to 28,851.68, 39,794.80 and 18,761.48

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Solution

The fourth proportional to 28,851.68, 39,794.80 and 18,761.48 is: 25,877.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,851.68 : 39,794.80 = 18,761.48 : x
  2. Step 2: Convert to fraction form
    28,851.68/39,794.80 = 18,761.48/x
  3. Step 3: Cross multiply
    28,851.68x = 39,794.80 × 18,761.48
  4. Step 4: Simplify right side
    28,851.68x = 746,609,344.30
  5. Step 5: Solve for x
    x = 746,609,344.30/28,851.68
  6. Step 6: Final answer
    x = 25,877.50

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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.