Home / 21,481.34-32,218.38-5,686.58

Finding the Fourth Proportional to 21,481.34, 32,218.38 and 5,686.58

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Solution

The fourth proportional to 21,481.34, 32,218.38 and 5,686.58 is: 8,528.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,481.34 : 32,218.38 = 5,686.58 : x
  2. Step 2: Convert to fraction form
    21,481.34/32,218.38 = 5,686.58/x
  3. Step 3: Cross multiply
    21,481.34x = 32,218.38 × 5,686.58
  4. Step 4: Simplify right side
    21,481.34x = 183,212,395.34
  5. Step 5: Solve for x
    x = 183,212,395.34/21,481.34
  6. Step 6: Final answer
    x = 8,528.91

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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.