Home / 40,668.56-61,041.36-20,960.72

Finding the Fourth Proportional to 40,668.56, 61,041.36 and 20,960.72

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Solution

The fourth proportional to 40,668.56, 61,041.36 and 20,960.72 is: 31,460.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,668.56 : 61,041.36 = 20,960.72 : x
  2. Step 2: Convert to fraction form
    40,668.56/61,041.36 = 20,960.72/x
  3. Step 3: Cross multiply
    40,668.56x = 61,041.36 × 20,960.72
  4. Step 4: Simplify right side
    40,668.56x = 1,279,470,855.38
  5. Step 5: Solve for x
    x = 1,279,470,855.38/40,668.56
  6. Step 6: Final answer
    x = 31,460.93

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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.