Home / 31,779.44-47,638.14-15,134.96

Finding the Fourth Proportional to 31,779.44, 47,638.14 and 15,134.96

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Solution

The fourth proportional to 31,779.44, 47,638.14 and 15,134.96 is: 22,687.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.44 : 47,638.14 = 15,134.96 : x
  2. Step 2: Convert to fraction form
    31,779.44/47,638.14 = 15,134.96/x
  3. Step 3: Cross multiply
    31,779.44x = 47,638.14 × 15,134.96
  4. Step 4: Simplify right side
    31,779.44x = 721,001,343.37
  5. Step 5: Solve for x
    x = 721,001,343.37/31,779.44
  6. Step 6: Final answer
    x = 22,687.67

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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.