Home / 39,378.48-59,077.70-13,083.36

Finding the Fourth Proportional to 39,378.48, 59,077.70 and 13,083.36

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Solution

The fourth proportional to 39,378.48, 59,077.70 and 13,083.36 is: 19,628.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.48 : 59,077.70 = 13,083.36 : x
  2. Step 2: Convert to fraction form
    39,378.48/59,077.70 = 13,083.36/x
  3. Step 3: Cross multiply
    39,378.48x = 59,077.70 × 13,083.36
  4. Step 4: Simplify right side
    39,378.48x = 772,934,817.07
  5. Step 5: Solve for x
    x = 772,934,817.07/39,378.48
  6. Step 6: Final answer
    x = 19,628.36

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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.