Home / 28,817.60-39,768.30-16,071.92

Finding the Fourth Proportional to 28,817.60, 39,768.30 and 16,071.92

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Solution

The fourth proportional to 28,817.60, 39,768.30 and 16,071.92 is: 22,179.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,817.60 : 39,768.30 = 16,071.92 : x
  2. Step 2: Convert to fraction form
    28,817.60/39,768.30 = 16,071.92/x
  3. Step 3: Cross multiply
    28,817.60x = 39,768.30 × 16,071.92
  4. Step 4: Simplify right side
    28,817.60x = 639,152,936.14
  5. Step 5: Solve for x
    x = 639,152,936.14/28,817.60
  6. Step 6: Final answer
    x = 22,179.26

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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.