Home / 28,103.76-38,773.89-18,548.39

Finding the Fourth Proportional to 28,103.76, 38,773.89 and 18,548.39

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Solution

The fourth proportional to 28,103.76, 38,773.89 and 18,548.39 is: 25,590.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,103.76 : 38,773.89 = 18,548.39 : x
  2. Step 2: Convert to fraction form
    28,103.76/38,773.89 = 18,548.39/x
  3. Step 3: Cross multiply
    28,103.76x = 38,773.89 × 18,548.39
  4. Step 4: Simplify right side
    28,103.76x = 719,193,330.47
  5. Step 5: Solve for x
    x = 719,193,330.47/28,103.76
  6. Step 6: Final answer
    x = 25,590.64

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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.