Home / 27,756.36-38,302.82-15,823.54

Finding the Fourth Proportional to 27,756.36, 38,302.82 and 15,823.54

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Solution

The fourth proportional to 27,756.36, 38,302.82 and 15,823.54 is: 21,835.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,756.36 : 38,302.82 = 15,823.54 : x
  2. Step 2: Convert to fraction form
    27,756.36/38,302.82 = 15,823.54/x
  3. Step 3: Cross multiply
    27,756.36x = 38,302.82 × 15,823.54
  4. Step 4: Simplify right side
    27,756.36x = 606,085,933.75
  5. Step 5: Solve for x
    x = 606,085,933.75/27,756.36
  6. Step 6: Final answer
    x = 21,835.93

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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.