Home / 20,654.44-28,503.23-11,703.69

Finding the Fourth Proportional to 20,654.44, 28,503.23 and 11,703.69

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Solution

The fourth proportional to 20,654.44, 28,503.23 and 11,703.69 is: 16,151.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.44 : 28,503.23 = 11,703.69 : x
  2. Step 2: Convert to fraction form
    20,654.44/28,503.23 = 11,703.69/x
  3. Step 3: Cross multiply
    20,654.44x = 28,503.23 × 11,703.69
  4. Step 4: Simplify right side
    20,654.44x = 333,592,909.40
  5. Step 5: Solve for x
    x = 333,592,909.40/20,654.44
  6. Step 6: Final answer
    x = 16,151.15

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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.