Home / 28,726.15-39,636.19-16,787.16

Finding the Fourth Proportional to 28,726.15, 39,636.19 and 16,787.16

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Solution

The fourth proportional to 28,726.15, 39,636.19 and 16,787.16 is: 23,162.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,726.15 : 39,636.19 = 16,787.16 : x
  2. Step 2: Convert to fraction form
    28,726.15/39,636.19 = 16,787.16/x
  3. Step 3: Cross multiply
    28,726.15x = 39,636.19 × 16,787.16
  4. Step 4: Simplify right side
    28,726.15x = 665,379,063.32
  5. Step 5: Solve for x
    x = 665,379,063.32/28,726.15
  6. Step 6: Final answer
    x = 23,162.83

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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.