Home / 28,640.29-39,523.12-16,064.77

Finding the Fourth Proportional to 28,640.29, 39,523.12 and 16,064.77

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Solution

The fourth proportional to 28,640.29, 39,523.12 and 16,064.77 is: 22,169.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,640.29 : 39,523.12 = 16,064.77 : x
  2. Step 2: Convert to fraction form
    28,640.29/39,523.12 = 16,064.77/x
  3. Step 3: Cross multiply
    28,640.29x = 39,523.12 × 16,064.77
  4. Step 4: Simplify right side
    28,640.29x = 634,929,832.48
  5. Step 5: Solve for x
    x = 634,929,832.48/28,640.29
  6. Step 6: Final answer
    x = 22,169.11

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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.