Home / 43,921.98-65,864.07-13,929.30

Finding the Fourth Proportional to 43,921.98, 65,864.07 and 13,929.30

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Solution

The fourth proportional to 43,921.98, 65,864.07 and 13,929.30 is: 20,887.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,921.98 : 65,864.07 = 13,929.30 : x
  2. Step 2: Convert to fraction form
    43,921.98/65,864.07 = 13,929.30/x
  3. Step 3: Cross multiply
    43,921.98x = 65,864.07 × 13,929.30
  4. Step 4: Simplify right side
    43,921.98x = 917,440,390.25
  5. Step 5: Solve for x
    x = 917,440,390.25/43,921.98
  6. Step 6: Final answer
    x = 20,887.96

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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.