Home / 20,038.44-27,655.10-11,540.88

Finding the Fourth Proportional to 20,038.44, 27,655.10 and 11,540.88

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Solution

The fourth proportional to 20,038.44, 27,655.10 and 11,540.88 is: 15,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,038.44 : 27,655.10 = 11,540.88 : x
  2. Step 2: Convert to fraction form
    20,038.44/27,655.10 = 11,540.88/x
  3. Step 3: Cross multiply
    20,038.44x = 27,655.10 × 11,540.88
  4. Step 4: Simplify right side
    20,038.44x = 319,164,190.49
  5. Step 5: Solve for x
    x = 319,164,190.49/20,038.44
  6. Step 6: Final answer
    x = 15,927.60

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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.