Home / 20,231.51-30,347.54-7,752.16

Finding the Fourth Proportional to 20,231.51, 30,347.54 and 7,752.16

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Solution

The fourth proportional to 20,231.51, 30,347.54 and 7,752.16 is: 11,628.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,231.51 : 30,347.54 = 7,752.16 : x
  2. Step 2: Convert to fraction form
    20,231.51/30,347.54 = 7,752.16/x
  3. Step 3: Cross multiply
    20,231.51x = 30,347.54 × 7,752.16
  4. Step 4: Simplify right side
    20,231.51x = 235,259,057.54
  5. Step 5: Solve for x
    x = 235,259,057.54/20,231.51
  6. Step 6: Final answer
    x = 11,628.35

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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.