Home / 20,403.69-30,539.91-10,529.52

Finding the Fourth Proportional to 20,403.69, 30,539.91 and 10,529.52

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Solution

The fourth proportional to 20,403.69, 30,539.91 and 10,529.52 is: 15,760.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,403.69 : 30,539.91 = 10,529.52 : x
  2. Step 2: Convert to fraction form
    20,403.69/30,539.91 = 10,529.52/x
  3. Step 3: Cross multiply
    20,403.69x = 30,539.91 × 10,529.52
  4. Step 4: Simplify right side
    20,403.69x = 321,570,593.14
  5. Step 5: Solve for x
    x = 321,570,593.14/20,403.69
  6. Step 6: Final answer
    x = 15,760.41

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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.