Home / 20,228.32-30,347.34-6,187.78

Finding the Fourth Proportional to 20,228.32, 30,347.34 and 6,187.78

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Solution

The fourth proportional to 20,228.32, 30,347.34 and 6,187.78 is: 9,283.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,228.32 : 30,347.34 = 6,187.78 : x
  2. Step 2: Convert to fraction form
    20,228.32/30,347.34 = 6,187.78/x
  3. Step 3: Cross multiply
    20,228.32x = 30,347.34 × 6,187.78
  4. Step 4: Simplify right side
    20,228.32x = 187,782,663.51
  5. Step 5: Solve for x
    x = 187,782,663.51/20,228.32
  6. Step 6: Final answer
    x = 9,283.16

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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.