Home / 27,945.42-38,558.09-18,887.64

Finding the Fourth Proportional to 27,945.42, 38,558.09 and 18,887.64

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Solution

The fourth proportional to 27,945.42, 38,558.09 and 18,887.64 is: 26,060.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,945.42 : 38,558.09 = 18,887.64 : x
  2. Step 2: Convert to fraction form
    27,945.42/38,558.09 = 18,887.64/x
  3. Step 3: Cross multiply
    27,945.42x = 38,558.09 × 18,887.64
  4. Step 4: Simplify right side
    27,945.42x = 728,271,323.01
  5. Step 5: Solve for x
    x = 728,271,323.01/27,945.42
  6. Step 6: Final answer
    x = 26,060.49

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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.