Home / 19,856.16-27,400.80-10,903.36

Finding the Fourth Proportional to 19,856.16, 27,400.80 and 10,903.36

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Solution

The fourth proportional to 19,856.16, 27,400.80 and 10,903.36 is: 15,046.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,856.16 : 27,400.80 = 10,903.36 : x
  2. Step 2: Convert to fraction form
    19,856.16/27,400.80 = 10,903.36/x
  3. Step 3: Cross multiply
    19,856.16x = 27,400.80 × 10,903.36
  4. Step 4: Simplify right side
    19,856.16x = 298,760,786.69
  5. Step 5: Solve for x
    x = 298,760,786.69/19,856.16
  6. Step 6: Final answer
    x = 15,046.25

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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.