Home / 20,738.46-31,110.53-6,693.81

Finding the Fourth Proportional to 20,738.46, 31,110.53 and 6,693.81

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Solution

The fourth proportional to 20,738.46, 31,110.53 and 6,693.81 is: 10,041.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,738.46 : 31,110.53 = 6,693.81 : x
  2. Step 2: Convert to fraction form
    20,738.46/31,110.53 = 6,693.81/x
  3. Step 3: Cross multiply
    20,738.46x = 31,110.53 × 6,693.81
  4. Step 4: Simplify right side
    20,738.46x = 208,248,126.83
  5. Step 5: Solve for x
    x = 208,248,126.83/20,738.46
  6. Step 6: Final answer
    x = 10,041.64

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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.