Home / 39,179.75-58,779.36-11,477.75

Finding the Fourth Proportional to 39,179.75, 58,779.36 and 11,477.75

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Solution

The fourth proportional to 39,179.75, 58,779.36 and 11,477.75 is: 17,219.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,179.75 : 58,779.36 = 11,477.75 : x
  2. Step 2: Convert to fraction form
    39,179.75/58,779.36 = 11,477.75/x
  3. Step 3: Cross multiply
    39,179.75x = 58,779.36 × 11,477.75
  4. Step 4: Simplify right side
    39,179.75x = 674,654,505.34
  5. Step 5: Solve for x
    x = 674,654,505.34/39,179.75
  6. Step 6: Final answer
    x = 17,219.47

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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.