Home / 28,997.75-40,016.90-16,424.93

Finding the Fourth Proportional to 28,997.75, 40,016.90 and 16,424.93

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Solution

The fourth proportional to 28,997.75, 40,016.90 and 16,424.93 is: 22,666.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,997.75 : 40,016.90 = 16,424.93 : x
  2. Step 2: Convert to fraction form
    28,997.75/40,016.90 = 16,424.93/x
  3. Step 3: Cross multiply
    28,997.75x = 40,016.90 × 16,424.93
  4. Step 4: Simplify right side
    28,997.75x = 657,274,781.32
  5. Step 5: Solve for x
    x = 657,274,781.32/28,997.75
  6. Step 6: Final answer
    x = 22,666.41

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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.