Home / 28,901.09-39,835.79-19,337.56

Finding the Fourth Proportional to 28,901.09, 39,835.79 and 19,337.56

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Solution

The fourth proportional to 28,901.09, 39,835.79 and 19,337.56 is: 26,653.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.09 : 39,835.79 = 19,337.56 : x
  2. Step 2: Convert to fraction form
    28,901.09/39,835.79 = 19,337.56/x
  3. Step 3: Cross multiply
    28,901.09x = 39,835.79 × 19,337.56
  4. Step 4: Simplify right side
    28,901.09x = 770,326,940.36
  5. Step 5: Solve for x
    x = 770,326,940.36/28,901.09
  6. Step 6: Final answer
    x = 26,653.91

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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.