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Finding the Fourth Proportional to 41,307.92, 61,970.52 and 20,520.08

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Solution

The fourth proportional to 41,307.92, 61,970.52 and 20,520.08 is: 30,784.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,307.92 : 61,970.52 = 20,520.08 : x
  2. Step 2: Convert to fraction form
    41,307.92/61,970.52 = 20,520.08/x
  3. Step 3: Cross multiply
    41,307.92x = 61,970.52 × 20,520.08
  4. Step 4: Simplify right side
    41,307.92x = 1,271,640,028.04
  5. Step 5: Solve for x
    x = 1,271,640,028.04/41,307.92
  6. Step 6: Final answer
    x = 30,784.41

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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.