Home / 28,862.09-39,830.63-16,761.63

Finding the Fourth Proportional to 28,862.09, 39,830.63 and 16,761.63

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Solution

The fourth proportional to 28,862.09, 39,830.63 and 16,761.63 is: 23,131.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,862.09 : 39,830.63 = 16,761.63 : x
  2. Step 2: Convert to fraction form
    28,862.09/39,830.63 = 16,761.63/x
  3. Step 3: Cross multiply
    28,862.09x = 39,830.63 × 16,761.63
  4. Step 4: Simplify right side
    28,862.09x = 667,626,198.92
  5. Step 5: Solve for x
    x = 667,626,198.92/28,862.09
  6. Step 6: Final answer
    x = 23,131.60

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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.