Home / 28,660.86-39,551.79-16,085.70

Finding the Fourth Proportional to 28,660.86, 39,551.79 and 16,085.70

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Solution

The fourth proportional to 28,660.86, 39,551.79 and 16,085.70 is: 22,198.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,660.86 : 39,551.79 = 16,085.70 : x
  2. Step 2: Convert to fraction form
    28,660.86/39,551.79 = 16,085.70/x
  3. Step 3: Cross multiply
    28,660.86x = 39,551.79 × 16,085.70
  4. Step 4: Simplify right side
    28,660.86x = 636,218,228.40
  5. Step 5: Solve for x
    x = 636,218,228.40/28,660.86
  6. Step 6: Final answer
    x = 22,198.16

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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.