Home / 39,180.48-58,779.36-12,893.28

Finding the Fourth Proportional to 39,180.48, 58,779.36 and 12,893.28

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Solution

The fourth proportional to 39,180.48, 58,779.36 and 12,893.28 is: 19,342.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,180.48 : 58,779.36 = 12,893.28 : x
  2. Step 2: Convert to fraction form
    39,180.48/58,779.36 = 12,893.28/x
  3. Step 3: Cross multiply
    39,180.48x = 58,779.36 × 12,893.28
  4. Step 4: Simplify right side
    39,180.48x = 757,858,746.70
  5. Step 5: Solve for x
    x = 757,858,746.70/39,180.48
  6. Step 6: Final answer
    x = 19,342.76

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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.