Home / 28,778.09-43,133.45-10,997.10

Finding the Fourth Proportional to 28,778.09, 43,133.45 and 10,997.10

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Solution

The fourth proportional to 28,778.09, 43,133.45 and 10,997.10 is: 16,482.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,778.09 : 43,133.45 = 10,997.10 : x
  2. Step 2: Convert to fraction form
    28,778.09/43,133.45 = 10,997.10/x
  3. Step 3: Cross multiply
    28,778.09x = 43,133.45 × 10,997.10
  4. Step 4: Simplify right side
    28,778.09x = 474,342,808.01
  5. Step 5: Solve for x
    x = 474,342,808.01/28,778.09
  6. Step 6: Final answer
    x = 16,482.78

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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.