Home / 27,640.64-38,144.97-15,703.26

Finding the Fourth Proportional to 27,640.64, 38,144.97 and 15,703.26

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Solution

The fourth proportional to 27,640.64, 38,144.97 and 15,703.26 is: 21,671.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,640.64 : 38,144.97 = 15,703.26 : x
  2. Step 2: Convert to fraction form
    27,640.64/38,144.97 = 15,703.26/x
  3. Step 3: Cross multiply
    27,640.64x = 38,144.97 × 15,703.26
  4. Step 4: Simplify right side
    27,640.64x = 599,000,381.60
  5. Step 5: Solve for x
    x = 599,000,381.60/27,640.64
  6. Step 6: Final answer
    x = 21,671.01

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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.