Home / 19,305.44-26,643.84-10,920.32

Finding the Fourth Proportional to 19,305.44, 26,643.84 and 10,920.32

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Solution

The fourth proportional to 19,305.44, 26,643.84 and 10,920.32 is: 15,071.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,305.44 : 26,643.84 = 10,920.32 : x
  2. Step 2: Convert to fraction form
    19,305.44/26,643.84 = 10,920.32/x
  3. Step 3: Cross multiply
    19,305.44x = 26,643.84 × 10,920.32
  4. Step 4: Simplify right side
    19,305.44x = 290,959,258.83
  5. Step 5: Solve for x
    x = 290,959,258.83/19,305.44
  6. Step 6: Final answer
    x = 15,071.36

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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.