Home / 20,923.04-31,384.56-5,340.67

Finding the Fourth Proportional to 20,923.04, 31,384.56 and 5,340.67

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Solution

The fourth proportional to 20,923.04, 31,384.56 and 5,340.67 is: 8,011.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,923.04 : 31,384.56 = 5,340.67 : x
  2. Step 2: Convert to fraction form
    20,923.04/31,384.56 = 5,340.67/x
  3. Step 3: Cross multiply
    20,923.04x = 31,384.56 × 5,340.67
  4. Step 4: Simplify right side
    20,923.04x = 167,614,519.62
  5. Step 5: Solve for x
    x = 167,614,519.62/20,923.04
  6. Step 6: Final answer
    x = 8,011.00

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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.