Home / 25,731.20-38,611.20-10,937.60

Finding the Fourth Proportional to 25,731.20, 38,611.20 and 10,937.60

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Solution

The fourth proportional to 25,731.20, 38,611.20 and 10,937.60 is: 16,412.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.20 : 38,611.20 = 10,937.60 : x
  2. Step 2: Convert to fraction form
    25,731.20/38,611.20 = 10,937.60/x
  3. Step 3: Cross multiply
    25,731.20x = 38,611.20 × 10,937.60
  4. Step 4: Simplify right side
    25,731.20x = 422,313,861.12
  5. Step 5: Solve for x
    x = 422,313,861.12/25,731.20
  6. Step 6: Final answer
    x = 16,412.52

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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.