Home / 20,671.71-30,982.94-14,397.74

Finding the Fourth Proportional to 20,671.71, 30,982.94 and 14,397.74

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Solution

The fourth proportional to 20,671.71, 30,982.94 and 14,397.74 is: 21,579.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,671.71 : 30,982.94 = 14,397.74 : x
  2. Step 2: Convert to fraction form
    20,671.71/30,982.94 = 14,397.74/x
  3. Step 3: Cross multiply
    20,671.71x = 30,982.94 × 14,397.74
  4. Step 4: Simplify right side
    20,671.71x = 446,084,314.56
  5. Step 5: Solve for x
    x = 446,084,314.56/20,671.71
  6. Step 6: Final answer
    x = 21,579.46

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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.