Home / 39,768.99-59,656.53-13,104.60

Finding the Fourth Proportional to 39,768.99, 59,656.53 and 13,104.60

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Solution

The fourth proportional to 39,768.99, 59,656.53 and 13,104.60 is: 19,657.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,768.99 : 59,656.53 = 13,104.60 : x
  2. Step 2: Convert to fraction form
    39,768.99/59,656.53 = 13,104.60/x
  3. Step 3: Cross multiply
    39,768.99x = 59,656.53 × 13,104.60
  4. Step 4: Simplify right side
    39,768.99x = 781,774,963.04
  5. Step 5: Solve for x
    x = 781,774,963.04/39,768.99
  6. Step 6: Final answer
    x = 19,657.90

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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.