Home / 43,398.77-65,076.24-21,178.85

Finding the Fourth Proportional to 43,398.77, 65,076.24 and 21,178.85

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Solution

The fourth proportional to 43,398.77, 65,076.24 and 21,178.85 is: 31,757.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,398.77 : 65,076.24 = 21,178.85 : x
  2. Step 2: Convert to fraction form
    43,398.77/65,076.24 = 21,178.85/x
  3. Step 3: Cross multiply
    43,398.77x = 65,076.24 × 21,178.85
  4. Step 4: Simplify right side
    43,398.77x = 1,378,239,925.52
  5. Step 5: Solve for x
    x = 1,378,239,925.52/43,398.77
  6. Step 6: Final answer
    x = 31,757.58

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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.