Home / 20,231.48-30,347.49-7,752.13

Finding the Fourth Proportional to 20,231.48, 30,347.49 and 7,752.13

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Solution

The fourth proportional to 20,231.48, 30,347.49 and 7,752.13 is: 11,628.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.48 : 30,347.49 = 7,752.13 : x
  2. Step 2: Convert to fraction form
    20,231.48/30,347.49 = 7,752.13/x
  3. Step 3: Cross multiply
    20,231.48x = 30,347.49 × 7,752.13
  4. Step 4: Simplify right side
    20,231.48x = 235,257,707.03
  5. Step 5: Solve for x
    x = 235,257,707.03/20,231.48
  6. Step 6: Final answer
    x = 11,628.30

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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.