Home / 19,985.06-27,579.42-10,910.42

Finding the Fourth Proportional to 19,985.06, 27,579.42 and 10,910.42

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Solution

The fourth proportional to 19,985.06, 27,579.42 and 10,910.42 is: 15,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,985.06 : 27,579.42 = 10,910.42 : x
  2. Step 2: Convert to fraction form
    19,985.06/27,579.42 = 10,910.42/x
  3. Step 3: Cross multiply
    19,985.06x = 27,579.42 × 10,910.42
  4. Step 4: Simplify right side
    19,985.06x = 300,902,917.66
  5. Step 5: Solve for x
    x = 300,902,917.66/19,985.06
  6. Step 6: Final answer
    x = 15,056.40

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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.