Home / 40,378.37-60,574.47-13,721.54

Finding the Fourth Proportional to 40,378.37, 60,574.47 and 13,721.54

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Solution

The fourth proportional to 40,378.37, 60,574.47 and 13,721.54 is: 20,584.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,378.37 : 60,574.47 = 13,721.54 : x
  2. Step 2: Convert to fraction form
    40,378.37/60,574.47 = 13,721.54/x
  3. Step 3: Cross multiply
    40,378.37x = 60,574.47 × 13,721.54
  4. Step 4: Simplify right side
    40,378.37x = 831,175,013.08
  5. Step 5: Solve for x
    x = 831,175,013.08/40,378.37
  6. Step 6: Final answer
    x = 20,584.66

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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.