Home / 21,438.64-32,159.37-5,856.25

Finding the Fourth Proportional to 21,438.64, 32,159.37 and 5,856.25

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Solution

The fourth proportional to 21,438.64, 32,159.37 and 5,856.25 is: 8,784.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,438.64 : 32,159.37 = 5,856.25 : x
  2. Step 2: Convert to fraction form
    21,438.64/32,159.37 = 5,856.25/x
  3. Step 3: Cross multiply
    21,438.64x = 32,159.37 × 5,856.25
  4. Step 4: Simplify right side
    21,438.64x = 188,333,310.56
  5. Step 5: Solve for x
    x = 188,333,310.56/21,438.64
  6. Step 6: Final answer
    x = 8,784.76

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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.