Home / 31,779.72-47,650.89-12,059.67

Finding the Fourth Proportional to 31,779.72, 47,650.89 and 12,059.67

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Solution

The fourth proportional to 31,779.72, 47,650.89 and 12,059.67 is: 18,082.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,779.72 : 47,650.89 = 12,059.67 : x
  2. Step 2: Convert to fraction form
    31,779.72/47,650.89 = 12,059.67/x
  3. Step 3: Cross multiply
    31,779.72x = 47,650.89 × 12,059.67
  4. Step 4: Simplify right side
    31,779.72x = 574,654,008.61
  5. Step 5: Solve for x
    x = 574,654,008.61/31,779.72
  6. Step 6: Final answer
    x = 18,082.41

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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.