Home / 27,128.40-37,439.40-15,647.04

Finding the Fourth Proportional to 27,128.40, 37,439.40 and 15,647.04

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Solution

The fourth proportional to 27,128.40, 37,439.40 and 15,647.04 is: 21,594.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,128.40 : 37,439.40 = 15,647.04 : x
  2. Step 2: Convert to fraction form
    27,128.40/37,439.40 = 15,647.04/x
  3. Step 3: Cross multiply
    27,128.40x = 37,439.40 × 15,647.04
  4. Step 4: Simplify right side
    27,128.40x = 585,815,789.38
  5. Step 5: Solve for x
    x = 585,815,789.38/27,128.40
  6. Step 6: Final answer
    x = 21,594.19

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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.