Home / 27,576.78-38,052.63-15,639.54

Finding the Fourth Proportional to 27,576.78, 38,052.63 and 15,639.54

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Solution

The fourth proportional to 27,576.78, 38,052.63 and 15,639.54 is: 21,580.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,576.78 : 38,052.63 = 15,639.54 : x
  2. Step 2: Convert to fraction form
    27,576.78/38,052.63 = 15,639.54/x
  3. Step 3: Cross multiply
    27,576.78x = 38,052.63 × 15,639.54
  4. Step 4: Simplify right side
    27,576.78x = 595,125,628.99
  5. Step 5: Solve for x
    x = 595,125,628.99/27,576.78
  6. Step 6: Final answer
    x = 21,580.68

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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.