Home / 27,078.72-37,369.26-14,979.21

Finding the Fourth Proportional to 27,078.72, 37,369.26 and 14,979.21

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Solution

The fourth proportional to 27,078.72, 37,369.26 and 14,979.21 is: 20,671.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,078.72 : 37,369.26 = 14,979.21 : x
  2. Step 2: Convert to fraction form
    27,078.72/37,369.26 = 14,979.21/x
  3. Step 3: Cross multiply
    27,078.72x = 37,369.26 × 14,979.21
  4. Step 4: Simplify right side
    27,078.72x = 559,761,993.08
  5. Step 5: Solve for x
    x = 559,761,993.08/27,078.72
  6. Step 6: Final answer
    x = 20,671.66

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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.