Home / 27,456.79-37,890.98-16,840.15

Finding the Fourth Proportional to 27,456.79, 37,890.98 and 16,840.15

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Solution

The fourth proportional to 27,456.79, 37,890.98 and 16,840.15 is: 23,239.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,456.79 : 37,890.98 = 16,840.15 : x
  2. Step 2: Convert to fraction form
    27,456.79/37,890.98 = 16,840.15/x
  3. Step 3: Cross multiply
    27,456.79x = 37,890.98 × 16,840.15
  4. Step 4: Simplify right side
    27,456.79x = 638,089,786.85
  5. Step 5: Solve for x
    x = 638,089,786.85/27,456.79
  6. Step 6: Final answer
    x = 23,239.78

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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.