Home / 28,663.64-39,554.51-15,917.64

Finding the Fourth Proportional to 28,663.64, 39,554.51 and 15,917.64

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Solution

The fourth proportional to 28,663.64, 39,554.51 and 15,917.64 is: 21,965.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,663.64 : 39,554.51 = 15,917.64 : x
  2. Step 2: Convert to fraction form
    28,663.64/39,554.51 = 15,917.64/x
  3. Step 3: Cross multiply
    28,663.64x = 39,554.51 × 15,917.64
  4. Step 4: Simplify right side
    28,663.64x = 629,614,534.67
  5. Step 5: Solve for x
    x = 629,614,534.67/28,663.64
  6. Step 6: Final answer
    x = 21,965.61

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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.