Home / 27,379.70-37,783.12-15,280.52

Finding the Fourth Proportional to 27,379.70, 37,783.12 and 15,280.52

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Solution

The fourth proportional to 27,379.70, 37,783.12 and 15,280.52 is: 21,086.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,379.70 : 37,783.12 = 15,280.52 : x
  2. Step 2: Convert to fraction form
    27,379.70/37,783.12 = 15,280.52/x
  3. Step 3: Cross multiply
    27,379.70x = 37,783.12 × 15,280.52
  4. Step 4: Simplify right side
    27,379.70x = 577,345,720.82
  5. Step 5: Solve for x
    x = 577,345,720.82/27,379.70
  6. Step 6: Final answer
    x = 21,086.63

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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.