Home / 43,905.40-65,872.90-13,924.54

Finding the Fourth Proportional to 43,905.40, 65,872.90 and 13,924.54

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Solution

The fourth proportional to 43,905.40, 65,872.90 and 13,924.54 is: 20,891.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,905.40 : 65,872.90 = 13,924.54 : x
  2. Step 2: Convert to fraction form
    43,905.40/65,872.90 = 13,924.54/x
  3. Step 3: Cross multiply
    43,905.40x = 65,872.90 × 13,924.54
  4. Step 4: Simplify right side
    43,905.40x = 917,249,830.97
  5. Step 5: Solve for x
    x = 917,249,830.97/43,905.40
  6. Step 6: Final answer
    x = 20,891.50

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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.