Home / 16,920.32-23,357.64-10,879.34

Finding the Fourth Proportional to 16,920.32, 23,357.64 and 10,879.34

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Solution

The fourth proportional to 16,920.32, 23,357.64 and 10,879.34 is: 15,018.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,920.32 : 23,357.64 = 10,879.34 : x
  2. Step 2: Convert to fraction form
    16,920.32/23,357.64 = 10,879.34/x
  3. Step 3: Cross multiply
    16,920.32x = 23,357.64 × 10,879.34
  4. Step 4: Simplify right side
    16,920.32x = 254,115,590.37
  5. Step 5: Solve for x
    x = 254,115,590.37/16,920.32
  6. Step 6: Final answer
    x = 15,018.37

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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.