Home / 39,111.54-58,669.12-11,409.54

Finding the Fourth Proportional to 39,111.54, 58,669.12 and 11,409.54

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Solution

The fourth proportional to 39,111.54, 58,669.12 and 11,409.54 is: 17,114.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,111.54 : 58,669.12 = 11,409.54 : x
  2. Step 2: Convert to fraction form
    39,111.54/58,669.12 = 11,409.54/x
  3. Step 3: Cross multiply
    39,111.54x = 58,669.12 × 11,409.54
  4. Step 4: Simplify right side
    39,111.54x = 669,387,671.40
  5. Step 5: Solve for x
    x = 669,387,671.40/39,111.54
  6. Step 6: Final answer
    x = 17,114.84

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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.