Home / 37,774.78-52,129.92-20,779.72

Finding the Fourth Proportional to 37,774.78, 52,129.92 and 20,779.72

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Solution

The fourth proportional to 37,774.78, 52,129.92 and 20,779.72 is: 28,676.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,774.78 : 52,129.92 = 20,779.72 : x
  2. Step 2: Convert to fraction form
    37,774.78/52,129.92 = 20,779.72/x
  3. Step 3: Cross multiply
    37,774.78x = 52,129.92 × 20,779.72
  4. Step 4: Simplify right side
    37,774.78x = 1,083,245,141.22
  5. Step 5: Solve for x
    x = 1,083,245,141.22/37,774.78
  6. Step 6: Final answer
    x = 28,676.41

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1.5x scale

Why These Related Problems?

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