Home / 40,680.20-60,971.70-20,948.60

Finding the Fourth Proportional to 40,680.20, 60,971.70 and 20,948.60

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Solution

The fourth proportional to 40,680.20, 60,971.70 and 20,948.60 is: 31,397.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,680.20 : 60,971.70 = 20,948.60 : x
  2. Step 2: Convert to fraction form
    40,680.20/60,971.70 = 20,948.60/x
  3. Step 3: Cross multiply
    40,680.20x = 60,971.70 × 20,948.60
  4. Step 4: Simplify right side
    40,680.20x = 1,277,271,754.62
  5. Step 5: Solve for x
    x = 1,277,271,754.62/40,680.20
  6. Step 6: Final answer
    x = 31,397.87

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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.