Home / 20,297.19-28,010.44-11,345.28

Finding the Fourth Proportional to 20,297.19, 28,010.44 and 11,345.28

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Solution

The fourth proportional to 20,297.19, 28,010.44 and 11,345.28 is: 15,656.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,297.19 : 28,010.44 = 11,345.28 : x
  2. Step 2: Convert to fraction form
    20,297.19/28,010.44 = 11,345.28/x
  3. Step 3: Cross multiply
    20,297.19x = 28,010.44 × 11,345.28
  4. Step 4: Simplify right side
    20,297.19x = 317,786,284.72
  5. Step 5: Solve for x
    x = 317,786,284.72/20,297.19
  6. Step 6: Final answer
    x = 15,656.66

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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.