Home / 27,827.70-38,404.67-15,894.87

Finding the Fourth Proportional to 27,827.70, 38,404.67 and 15,894.87

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Solution

The fourth proportional to 27,827.70, 38,404.67 and 15,894.87 is: 21,936.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,827.70 : 38,404.67 = 15,894.87 : x
  2. Step 2: Convert to fraction form
    27,827.70/38,404.67 = 15,894.87/x
  3. Step 3: Cross multiply
    27,827.70x = 38,404.67 × 15,894.87
  4. Step 4: Simplify right side
    27,827.70x = 610,437,157.57
  5. Step 5: Solve for x
    x = 610,437,157.57/27,827.70
  6. Step 6: Final answer
    x = 21,936.31

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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.