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Finding the Fourth Proportional to 20,541.90, 30,813.08 and 6,501.67

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Solution

The fourth proportional to 20,541.90, 30,813.08 and 6,501.67 is: 9,752.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,541.90 : 30,813.08 = 6,501.67 : x
  2. Step 2: Convert to fraction form
    20,541.90/30,813.08 = 6,501.67/x
  3. Step 3: Cross multiply
    20,541.90x = 30,813.08 × 6,501.67
  4. Step 4: Simplify right side
    20,541.90x = 200,336,368.30
  5. Step 5: Solve for x
    x = 200,336,368.30/20,541.90
  6. Step 6: Final answer
    x = 9,752.57

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1.5x scale

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.