Home / 21,079.75-29,040.58-14,694.74

Finding the Fourth Proportional to 21,079.75, 29,040.58 and 14,694.74

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Solution

The fourth proportional to 21,079.75, 29,040.58 and 14,694.74 is: 20,244.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,079.75 : 29,040.58 = 14,694.74 : x
  2. Step 2: Convert to fraction form
    21,079.75/29,040.58 = 14,694.74/x
  3. Step 3: Cross multiply
    21,079.75x = 29,040.58 × 14,694.74
  4. Step 4: Simplify right side
    21,079.75x = 426,743,772.55
  5. Step 5: Solve for x
    x = 426,743,772.55/21,079.75
  6. Step 6: Final answer
    x = 20,244.25

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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.