Home / 41,007.60-61,511.40-20,271.60

Finding the Fourth Proportional to 41,007.60, 61,511.40 and 20,271.60

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Solution

The fourth proportional to 41,007.60, 61,511.40 and 20,271.60 is: 30,407.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,007.60 : 61,511.40 = 20,271.60 : x
  2. Step 2: Convert to fraction form
    41,007.60/61,511.40 = 20,271.60/x
  3. Step 3: Cross multiply
    41,007.60x = 61,511.40 × 20,271.60
  4. Step 4: Simplify right side
    41,007.60x = 1,246,934,496.24
  5. Step 5: Solve for x
    x = 1,246,934,496.24/41,007.60
  6. Step 6: Final answer
    x = 30,407.40

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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.