Home / 21,437.32-29,581.86-12,004.60

Finding the Fourth Proportional to 21,437.32, 29,581.86 and 12,004.60

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Solution

The fourth proportional to 21,437.32, 29,581.86 and 12,004.60 is: 16,565.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,437.32 : 29,581.86 = 12,004.60 : x
  2. Step 2: Convert to fraction form
    21,437.32/29,581.86 = 12,004.60/x
  3. Step 3: Cross multiply
    21,437.32x = 29,581.86 × 12,004.60
  4. Step 4: Simplify right side
    21,437.32x = 355,118,396.56
  5. Step 5: Solve for x
    x = 355,118,396.56/21,437.32
  6. Step 6: Final answer
    x = 16,565.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.