Home / 27,864.58-38,453.11-15,928.17

Finding the Fourth Proportional to 27,864.58, 38,453.11 and 15,928.17

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Solution

The fourth proportional to 27,864.58, 38,453.11 and 15,928.17 is: 21,980.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.58 : 38,453.11 = 15,928.17 : x
  2. Step 2: Convert to fraction form
    27,864.58/38,453.11 = 15,928.17/x
  3. Step 3: Cross multiply
    27,864.58x = 38,453.11 × 15,928.17
  4. Step 4: Simplify right side
    27,864.58x = 612,487,673.11
  5. Step 5: Solve for x
    x = 612,487,673.11/27,864.58
  6. Step 6: Final answer
    x = 21,980.87

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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.