Home / 21,491.07-29,657.58-12,059.64

Finding the Fourth Proportional to 21,491.07, 29,657.58 and 12,059.64

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Solution

The fourth proportional to 21,491.07, 29,657.58 and 12,059.64 is: 16,642.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,491.07 : 29,657.58 = 12,059.64 : x
  2. Step 2: Convert to fraction form
    21,491.07/29,657.58 = 12,059.64/x
  3. Step 3: Cross multiply
    21,491.07x = 29,657.58 × 12,059.64
  4. Step 4: Simplify right side
    21,491.07x = 357,659,738.07
  5. Step 5: Solve for x
    x = 357,659,738.07/21,491.07
  6. Step 6: Final answer
    x = 16,642.25

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1.5x scale

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.