Home / 27,990.72-41,984.64-14,139.36

Finding the Fourth Proportional to 27,990.72, 41,984.64 and 14,139.36

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Solution

The fourth proportional to 27,990.72, 41,984.64 and 14,139.36 is: 21,208.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,990.72 : 41,984.64 = 14,139.36 : x
  2. Step 2: Convert to fraction form
    27,990.72/41,984.64 = 14,139.36/x
  3. Step 3: Cross multiply
    27,990.72x = 41,984.64 × 14,139.36
  4. Step 4: Simplify right side
    27,990.72x = 593,635,939.43
  5. Step 5: Solve for x
    x = 593,635,939.43/27,990.72
  6. Step 6: Final answer
    x = 21,208.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.