Home / 27,576.28-38,051.92-15,639.04

Finding the Fourth Proportional to 27,576.28, 38,051.92 and 15,639.04

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Solution

The fourth proportional to 27,576.28, 38,051.92 and 15,639.04 is: 21,579.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,576.28 : 38,051.92 = 15,639.04 : x
  2. Step 2: Convert to fraction form
    27,576.28/38,051.92 = 15,639.04/x
  3. Step 3: Cross multiply
    27,576.28x = 38,051.92 × 15,639.04
  4. Step 4: Simplify right side
    27,576.28x = 595,095,498.96
  5. Step 5: Solve for x
    x = 595,095,498.96/27,576.28
  6. Step 6: Final answer
    x = 21,579.98

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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.