Home / 20,400.06-30,575.48-10,533.96

Finding the Fourth Proportional to 20,400.06, 30,575.48 and 10,533.96

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Solution

The fourth proportional to 20,400.06, 30,575.48 and 10,533.96 is: 15,788.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400.06 : 30,575.48 = 10,533.96 : x
  2. Step 2: Convert to fraction form
    20,400.06/30,575.48 = 10,533.96/x
  3. Step 3: Cross multiply
    20,400.06x = 30,575.48 × 10,533.96
  4. Step 4: Simplify right side
    20,400.06x = 322,080,909.64
  5. Step 5: Solve for x
    x = 322,080,909.64/20,400.06
  6. Step 6: Final answer
    x = 15,788.23

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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.