Home / 39,261.48-58,879.74-12,961.32

Finding the Fourth Proportional to 39,261.48, 58,879.74 and 12,961.32

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Solution

The fourth proportional to 39,261.48, 58,879.74 and 12,961.32 is: 19,437.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,261.48 : 58,879.74 = 12,961.32 : x
  2. Step 2: Convert to fraction form
    39,261.48/58,879.74 = 12,961.32/x
  3. Step 3: Cross multiply
    39,261.48x = 58,879.74 × 12,961.32
  4. Step 4: Simplify right side
    39,261.48x = 763,159,151.66
  5. Step 5: Solve for x
    x = 763,159,151.66/39,261.48
  6. Step 6: Final answer
    x = 19,437.86

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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.