Home / 18,699.52-28,050.82-13,458.92

Finding the Fourth Proportional to 18,699.52, 28,050.82 and 13,458.92

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Solution

The fourth proportional to 18,699.52, 28,050.82 and 13,458.92 is: 20,189.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,699.52 : 28,050.82 = 13,458.92 : x
  2. Step 2: Convert to fraction form
    18,699.52/28,050.82 = 13,458.92/x
  3. Step 3: Cross multiply
    18,699.52x = 28,050.82 × 13,458.92
  4. Step 4: Simplify right side
    18,699.52x = 377,533,742.31
  5. Step 5: Solve for x
    x = 377,533,742.31/18,699.52
  6. Step 6: Final answer
    x = 20,189.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.