Home / 28,009.08-38,654.26-15,433.80

Finding the Fourth Proportional to 28,009.08, 38,654.26 and 15,433.80

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Solution

The fourth proportional to 28,009.08, 38,654.26 and 15,433.80 is: 21,299.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,009.08 : 38,654.26 = 15,433.80 : x
  2. Step 2: Convert to fraction form
    28,009.08/38,654.26 = 15,433.80/x
  3. Step 3: Cross multiply
    28,009.08x = 38,654.26 × 15,433.80
  4. Step 4: Simplify right side
    28,009.08x = 596,582,117.99
  5. Step 5: Solve for x
    x = 596,582,117.99/28,009.08
  6. Step 6: Final answer
    x = 21,299.60

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.