Home / 28,640.92-39,523.98-16,065.40

Finding the Fourth Proportional to 28,640.92, 39,523.98 and 16,065.40

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Solution

The fourth proportional to 28,640.92, 39,523.98 and 16,065.40 is: 22,169.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.92 : 39,523.98 = 16,065.40 : x
  2. Step 2: Convert to fraction form
    28,640.92/39,523.98 = 16,065.40/x
  3. Step 3: Cross multiply
    28,640.92x = 39,523.98 × 16,065.40
  4. Step 4: Simplify right side
    28,640.92x = 634,968,548.29
  5. Step 5: Solve for x
    x = 634,968,548.29/28,640.92
  6. Step 6: Final answer
    x = 22,169.98

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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.