Home / 40,378.62-60,574.85-13,721.79

Finding the Fourth Proportional to 40,378.62, 60,574.85 and 13,721.79

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Solution

The fourth proportional to 40,378.62, 60,574.85 and 13,721.79 is: 20,585.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,378.62 : 60,574.85 = 13,721.79 : x
  2. Step 2: Convert to fraction form
    40,378.62/60,574.85 = 13,721.79/x
  3. Step 3: Cross multiply
    40,378.62x = 60,574.85 × 13,721.79
  4. Step 4: Simplify right side
    40,378.62x = 831,195,302.37
  5. Step 5: Solve for x
    x = 831,195,302.37/40,378.62
  6. Step 6: Final answer
    x = 20,585.03

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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.