Home / 43,330.80-64,996.20-20,002.80

Finding the Fourth Proportional to 43,330.80, 64,996.20 and 20,002.80

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Solution

The fourth proportional to 43,330.80, 64,996.20 and 20,002.80 is: 30,004.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,330.80 : 64,996.20 = 20,002.80 : x
  2. Step 2: Convert to fraction form
    43,330.80/64,996.20 = 20,002.80/x
  3. Step 3: Cross multiply
    43,330.80x = 64,996.20 × 20,002.80
  4. Step 4: Simplify right side
    43,330.80x = 1,300,105,989.36
  5. Step 5: Solve for x
    x = 1,300,105,989.36/43,330.80
  6. Step 6: Final answer
    x = 30,004.20

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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.