Home / 21,313.32-31,929.06-11,924.92

Finding the Fourth Proportional to 21,313.32, 31,929.06 and 11,924.92

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Solution

The fourth proportional to 21,313.32, 31,929.06 and 11,924.92 is: 17,864.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,313.32 : 31,929.06 = 11,924.92 : x
  2. Step 2: Convert to fraction form
    21,313.32/31,929.06 = 11,924.92/x
  3. Step 3: Cross multiply
    21,313.32x = 31,929.06 × 11,924.92
  4. Step 4: Simplify right side
    21,313.32x = 380,751,326.53
  5. Step 5: Solve for x
    x = 380,751,326.53/21,313.32
  6. Step 6: Final answer
    x = 17,864.48

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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.