Home / 39,181.76-58,779.92-12,887.52

Finding the Fourth Proportional to 39,181.76, 58,779.92 and 12,887.52

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Solution

The fourth proportional to 39,181.76, 58,779.92 and 12,887.52 is: 19,333.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.76 : 58,779.92 = 12,887.52 : x
  2. Step 2: Convert to fraction form
    39,181.76/58,779.92 = 12,887.52/x
  3. Step 3: Cross multiply
    39,181.76x = 58,779.92 × 12,887.52
  4. Step 4: Simplify right side
    39,181.76x = 757,527,394.60
  5. Step 5: Solve for x
    x = 757,527,394.60/39,181.76
  6. Step 6: Final answer
    x = 19,333.67

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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.