Home / 28,980.43-43,486.79-15,653.15

Finding the Fourth Proportional to 28,980.43, 43,486.79 and 15,653.15

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Solution

The fourth proportional to 28,980.43, 43,486.79 and 15,653.15 is: 23,488.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,980.43 : 43,486.79 = 15,653.15 : x
  2. Step 2: Convert to fraction form
    28,980.43/43,486.79 = 15,653.15/x
  3. Step 3: Cross multiply
    28,980.43x = 43,486.79 × 15,653.15
  4. Step 4: Simplify right side
    28,980.43x = 680,705,394.74
  5. Step 5: Solve for x
    x = 680,705,394.74/28,980.43
  6. Step 6: Final answer
    x = 23,488.45

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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.