Home / 27,379.72-37,783.83-15,443.16

Finding the Fourth Proportional to 27,379.72, 37,783.83 and 15,443.16

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Solution

The fourth proportional to 27,379.72, 37,783.83 and 15,443.16 is: 21,311.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.72 : 37,783.83 = 15,443.16 : x
  2. Step 2: Convert to fraction form
    27,379.72/37,783.83 = 15,443.16/x
  3. Step 3: Cross multiply
    27,379.72x = 37,783.83 × 15,443.16
  4. Step 4: Simplify right side
    27,379.72x = 583,501,732.10
  5. Step 5: Solve for x
    x = 583,501,732.10/27,379.72
  6. Step 6: Final answer
    x = 21,311.46

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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.