Home / 40,376.76-60,621.36-20,668.92

Finding the Fourth Proportional to 40,376.76, 60,621.36 and 20,668.92

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Solution

The fourth proportional to 40,376.76, 60,621.36 and 20,668.92 is: 31,032.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,376.76 : 60,621.36 = 20,668.92 : x
  2. Step 2: Convert to fraction form
    40,376.76/60,621.36 = 20,668.92/x
  3. Step 3: Cross multiply
    40,376.76x = 60,621.36 × 20,668.92
  4. Step 4: Simplify right side
    40,376.76x = 1,252,978,040.13
  5. Step 5: Solve for x
    x = 1,252,978,040.13/40,376.76
  6. Step 6: Final answer
    x = 31,032.16

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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.