Home / 28,606.60-39,479.43-15,863.77

Finding the Fourth Proportional to 28,606.60, 39,479.43 and 15,863.77

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Solution

The fourth proportional to 28,606.60, 39,479.43 and 15,863.77 is: 21,893.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,606.60 : 39,479.43 = 15,863.77 : x
  2. Step 2: Convert to fraction form
    28,606.60/39,479.43 = 15,863.77/x
  3. Step 3: Cross multiply
    28,606.60x = 39,479.43 × 15,863.77
  4. Step 4: Simplify right side
    28,606.60x = 626,292,597.25
  5. Step 5: Solve for x
    x = 626,292,597.25/28,606.60
  6. Step 6: Final answer
    x = 21,893.29

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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.