Home / 28,779.30-43,112.45-25,644.60

Finding the Fourth Proportional to 28,779.30, 43,112.45 and 25,644.60

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Solution

The fourth proportional to 28,779.30, 43,112.45 and 25,644.60 is: 38,416.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,779.30 : 43,112.45 = 25,644.60 : x
  2. Step 2: Convert to fraction form
    28,779.30/43,112.45 = 25,644.60/x
  3. Step 3: Cross multiply
    28,779.30x = 43,112.45 × 25,644.60
  4. Step 4: Simplify right side
    28,779.30x = 1,105,601,599.38
  5. Step 5: Solve for x
    x = 1,105,601,599.38/28,779.30
  6. Step 6: Final answer
    x = 38,416.56

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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.