Home / 25,911.56-38,877.50-20,960.20

Finding the Fourth Proportional to 25,911.56, 38,877.50 and 20,960.20

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Solution

The fourth proportional to 25,911.56, 38,877.50 and 20,960.20 is: 31,448.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,911.56 : 38,877.50 = 20,960.20 : x
  2. Step 2: Convert to fraction form
    25,911.56/38,877.50 = 20,960.20/x
  3. Step 3: Cross multiply
    25,911.56x = 38,877.50 × 20,960.20
  4. Step 4: Simplify right side
    25,911.56x = 814,880,175.50
  5. Step 5: Solve for x
    x = 814,880,175.50/25,911.56
  6. Step 6: Final answer
    x = 31,448.52

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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.