Home / 27,864.64-38,453.20-15,928.23

Finding the Fourth Proportional to 27,864.64, 38,453.20 and 15,928.23

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Solution

The fourth proportional to 27,864.64, 38,453.20 and 15,928.23 is: 21,980.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.64 : 38,453.20 = 15,928.23 : x
  2. Step 2: Convert to fraction form
    27,864.64/38,453.20 = 15,928.23/x
  3. Step 3: Cross multiply
    27,864.64x = 38,453.20 × 15,928.23
  4. Step 4: Simplify right side
    27,864.64x = 612,491,374.02
  5. Step 5: Solve for x
    x = 612,491,374.02/27,864.64
  6. Step 6: Final answer
    x = 21,980.96

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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.