Home / 27,847.28-38,429.25-15,272.03

Finding the Fourth Proportional to 27,847.28, 38,429.25 and 15,272.03

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Solution

The fourth proportional to 27,847.28, 38,429.25 and 15,272.03 is: 21,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,847.28 : 38,429.25 = 15,272.03 : x
  2. Step 2: Convert to fraction form
    27,847.28/38,429.25 = 15,272.03/x
  3. Step 3: Cross multiply
    27,847.28x = 38,429.25 × 15,272.03
  4. Step 4: Simplify right side
    27,847.28x = 586,892,658.88
  5. Step 5: Solve for x
    x = 586,892,658.88/27,847.28
  6. Step 6: Final answer
    x = 21,075.40

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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.