Home / 28,712.80-43,010.40-16,997.44

Finding the Fourth Proportional to 28,712.80, 43,010.40 and 16,997.44

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Solution

The fourth proportional to 28,712.80, 43,010.40 and 16,997.44 is: 25,461.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,712.80 : 43,010.40 = 16,997.44 : x
  2. Step 2: Convert to fraction form
    28,712.80/43,010.40 = 16,997.44/x
  3. Step 3: Cross multiply
    28,712.80x = 43,010.40 × 16,997.44
  4. Step 4: Simplify right side
    28,712.80x = 731,066,693.38
  5. Step 5: Solve for x
    x = 731,066,693.38/28,712.80
  6. Step 6: Final answer
    x = 25,461.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.