Home / 20,262.02-30,397.53-7,782.05

Finding the Fourth Proportional to 20,262.02, 30,397.53 and 7,782.05

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Solution

The fourth proportional to 20,262.02, 30,397.53 and 7,782.05 is: 11,674.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,262.02 : 30,397.53 = 7,782.05 : x
  2. Step 2: Convert to fraction form
    20,262.02/30,397.53 = 7,782.05/x
  3. Step 3: Cross multiply
    20,262.02x = 30,397.53 × 7,782.05
  4. Step 4: Simplify right side
    20,262.02x = 236,555,078.88
  5. Step 5: Solve for x
    x = 236,555,078.88/20,262.02
  6. Step 6: Final answer
    x = 11,674.80

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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.