Home / 28,878.58-39,848.25-16,939.18

Finding the Fourth Proportional to 28,878.58, 39,848.25 and 16,939.18

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Solution

The fourth proportional to 28,878.58, 39,848.25 and 16,939.18 is: 23,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,878.58 : 39,848.25 = 16,939.18 : x
  2. Step 2: Convert to fraction form
    28,878.58/39,848.25 = 16,939.18/x
  3. Step 3: Cross multiply
    28,878.58x = 39,848.25 × 16,939.18
  4. Step 4: Simplify right side
    28,878.58x = 674,996,679.44
  5. Step 5: Solve for x
    x = 674,996,679.44/28,878.58
  6. Step 6: Final answer
    x = 23,373.61

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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.