Home / 21,182.22-31,765.68-6,386.58

Finding the Fourth Proportional to 21,182.22, 31,765.68 and 6,386.58

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Solution

The fourth proportional to 21,182.22, 31,765.68 and 6,386.58 is: 9,577.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,182.22 : 31,765.68 = 6,386.58 : x
  2. Step 2: Convert to fraction form
    21,182.22/31,765.68 = 6,386.58/x
  3. Step 3: Cross multiply
    21,182.22x = 31,765.68 × 6,386.58
  4. Step 4: Simplify right side
    21,182.22x = 202,874,056.57
  5. Step 5: Solve for x
    x = 202,874,056.57/21,182.22
  6. Step 6: Final answer
    x = 9,577.56

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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.