Home / 27,860.06-38,445.63-15,284.54

Finding the Fourth Proportional to 27,860.06, 38,445.63 and 15,284.54

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Solution

The fourth proportional to 27,860.06, 38,445.63 and 15,284.54 is: 21,091.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,860.06 : 38,445.63 = 15,284.54 : x
  2. Step 2: Convert to fraction form
    27,860.06/38,445.63 = 15,284.54/x
  3. Step 3: Cross multiply
    27,860.06x = 38,445.63 × 15,284.54
  4. Step 4: Simplify right side
    27,860.06x = 587,623,769.56
  5. Step 5: Solve for x
    x = 587,623,769.56/27,860.06
  6. Step 6: Final answer
    x = 21,091.98

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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.