Home / 20,890.72-31,332.99-6,095.67

Finding the Fourth Proportional to 20,890.72, 31,332.99 and 6,095.67

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Solution

The fourth proportional to 20,890.72, 31,332.99 and 6,095.67 is: 9,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,890.72 : 31,332.99 = 6,095.67 : x
  2. Step 2: Convert to fraction form
    20,890.72/31,332.99 = 6,095.67/x
  3. Step 3: Cross multiply
    20,890.72x = 31,332.99 × 6,095.67
  4. Step 4: Simplify right side
    20,890.72x = 190,995,410.49
  5. Step 5: Solve for x
    x = 190,995,410.49/20,890.72
  6. Step 6: Final answer
    x = 9,142.60

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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.