Home / 19,855.16-27,400.06-10,902.36

Finding the Fourth Proportional to 19,855.16, 27,400.06 and 10,902.36

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Solution

The fourth proportional to 19,855.16, 27,400.06 and 10,902.36 is: 15,045.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,855.16 : 27,400.06 = 10,902.36 : x
  2. Step 2: Convert to fraction form
    19,855.16/27,400.06 = 10,902.36/x
  3. Step 3: Cross multiply
    19,855.16x = 27,400.06 × 10,902.36
  4. Step 4: Simplify right side
    19,855.16x = 298,725,318.14
  5. Step 5: Solve for x
    x = 298,725,318.14/19,855.16
  6. Step 6: Final answer
    x = 15,045.22

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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.