Home / 27,530.90-37,998.70-18,100.34

Finding the Fourth Proportional to 27,530.90, 37,998.70 and 18,100.34

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Solution

The fourth proportional to 27,530.90, 37,998.70 and 18,100.34 is: 24,982.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,530.90 : 37,998.70 = 18,100.34 : x
  2. Step 2: Convert to fraction form
    27,530.90/37,998.70 = 18,100.34/x
  3. Step 3: Cross multiply
    27,530.90x = 37,998.70 × 18,100.34
  4. Step 4: Simplify right side
    27,530.90x = 687,789,389.56
  5. Step 5: Solve for x
    x = 687,789,389.56/27,530.90
  6. Step 6: Final answer
    x = 24,982.45

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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.