Home / 20,511.25-30,752.28-10,519.00

Finding the Fourth Proportional to 20,511.25, 30,752.28 and 10,519.00

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Solution

The fourth proportional to 20,511.25, 30,752.28 and 10,519.00 is: 15,771.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,511.25 : 30,752.28 = 10,519.00 : x
  2. Step 2: Convert to fraction form
    20,511.25/30,752.28 = 10,519.00/x
  3. Step 3: Cross multiply
    20,511.25x = 30,752.28 × 10,519.00
  4. Step 4: Simplify right side
    20,511.25x = 323,483,156.44
  5. Step 5: Solve for x
    x = 323,483,156.44/20,511.25
  6. Step 6: Final answer
    x = 15,771.01

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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.