Home / 27,940.88-38,548.98-15,840.07

Finding the Fourth Proportional to 27,940.88, 38,548.98 and 15,840.07

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Solution

The fourth proportional to 27,940.88, 38,548.98 and 15,840.07 is: 21,853.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,940.88 : 38,548.98 = 15,840.07 : x
  2. Step 2: Convert to fraction form
    27,940.88/38,548.98 = 15,840.07/x
  3. Step 3: Cross multiply
    27,940.88x = 38,548.98 × 15,840.07
  4. Step 4: Simplify right side
    27,940.88x = 610,618,445.26
  5. Step 5: Solve for x
    x = 610,618,445.26/27,940.88
  6. Step 6: Final answer
    x = 21,853.94

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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.