Home / 21,439.52-32,159.28-5,857.28

Finding the Fourth Proportional to 21,439.52, 32,159.28 and 5,857.28

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Solution

The fourth proportional to 21,439.52, 32,159.28 and 5,857.28 is: 8,785.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,439.52 : 32,159.28 = 5,857.28 : x
  2. Step 2: Convert to fraction form
    21,439.52/32,159.28 = 5,857.28/x
  3. Step 3: Cross multiply
    21,439.52x = 32,159.28 × 5,857.28
  4. Step 4: Simplify right side
    21,439.52x = 188,365,907.56
  5. Step 5: Solve for x
    x = 188,365,907.56/21,439.52
  6. Step 6: Final answer
    x = 8,785.92

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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.