Home / 20,561.88-30,829.85-17,442.99

Finding the Fourth Proportional to 20,561.88, 30,829.85 and 17,442.99

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Solution

The fourth proportional to 20,561.88, 30,829.85 and 17,442.99 is: 26,153.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,561.88 : 30,829.85 = 17,442.99 : x
  2. Step 2: Convert to fraction form
    20,561.88/30,829.85 = 17,442.99/x
  3. Step 3: Cross multiply
    20,561.88x = 30,829.85 × 17,442.99
  4. Step 4: Simplify right side
    20,561.88x = 537,764,678.04
  5. Step 5: Solve for x
    x = 537,764,678.04/20,561.88
  6. Step 6: Final answer
    x = 26,153.48

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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.