Home / 28,379.29-42,556.63-9,654.30

Finding the Fourth Proportional to 28,379.29, 42,556.63 and 9,654.30

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Solution

The fourth proportional to 28,379.29, 42,556.63 and 9,654.30 is: 14,477.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,379.29 : 42,556.63 = 9,654.30 : x
  2. Step 2: Convert to fraction form
    28,379.29/42,556.63 = 9,654.30/x
  3. Step 3: Cross multiply
    28,379.29x = 42,556.63 × 9,654.30
  4. Step 4: Simplify right side
    28,379.29x = 410,854,243.94
  5. Step 5: Solve for x
    x = 410,854,243.94/28,379.29
  6. Step 6: Final answer
    x = 14,477.26

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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.