Home / 27,449.76-37,878.72-15,513.60

Finding the Fourth Proportional to 27,449.76, 37,878.72 and 15,513.60

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Solution

The fourth proportional to 27,449.76, 37,878.72 and 15,513.60 is: 21,407.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,449.76 : 37,878.72 = 15,513.60 : x
  2. Step 2: Convert to fraction form
    27,449.76/37,878.72 = 15,513.60/x
  3. Step 3: Cross multiply
    27,449.76x = 37,878.72 × 15,513.60
  4. Step 4: Simplify right side
    27,449.76x = 587,635,310.59
  5. Step 5: Solve for x
    x = 587,635,310.59/27,449.76
  6. Step 6: Final answer
    x = 21,407.67

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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.