Home / 28,528.80-42,789.96-10,997.16

Finding the Fourth Proportional to 28,528.80, 42,789.96 and 10,997.16

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Solution

The fourth proportional to 28,528.80, 42,789.96 and 10,997.16 is: 16,494.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,528.80 : 42,789.96 = 10,997.16 : x
  2. Step 2: Convert to fraction form
    28,528.80/42,789.96 = 10,997.16/x
  3. Step 3: Cross multiply
    28,528.80x = 42,789.96 × 10,997.16
  4. Step 4: Simplify right side
    28,528.80x = 470,568,036.51
  5. Step 5: Solve for x
    x = 470,568,036.51/28,528.80
  6. Step 6: Final answer
    x = 16,494.49

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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.