Home / 28,980.10-43,514.70-15,858.10

Finding the Fourth Proportional to 28,980.10, 43,514.70 and 15,858.10

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Solution

The fourth proportional to 28,980.10, 43,514.70 and 15,858.10 is: 23,811.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,980.10 : 43,514.70 = 15,858.10 : x
  2. Step 2: Convert to fraction form
    28,980.10/43,514.70 = 15,858.10/x
  3. Step 3: Cross multiply
    28,980.10x = 43,514.70 × 15,858.10
  4. Step 4: Simplify right side
    28,980.10x = 690,060,464.07
  5. Step 5: Solve for x
    x = 690,060,464.07/28,980.10
  6. Step 6: Final answer
    x = 23,811.53

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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.