Home / 27,817.44-38,389.60-15,884.61

Finding the Fourth Proportional to 27,817.44, 38,389.60 and 15,884.61

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Solution

The fourth proportional to 27,817.44, 38,389.60 and 15,884.61 is: 21,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,817.44 : 38,389.60 = 15,884.61 : x
  2. Step 2: Convert to fraction form
    27,817.44/38,389.60 = 15,884.61/x
  3. Step 3: Cross multiply
    27,817.44x = 38,389.60 × 15,884.61
  4. Step 4: Simplify right side
    27,817.44x = 609,803,824.06
  5. Step 5: Solve for x
    x = 609,803,824.06/27,817.44
  6. Step 6: Final answer
    x = 21,921.64

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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.