Home / 31,821.99-43,914.59-19,892.35

Finding the Fourth Proportional to 31,821.99, 43,914.59 and 19,892.35

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Solution

The fourth proportional to 31,821.99, 43,914.59 and 19,892.35 is: 27,451.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.99 : 43,914.59 = 19,892.35 : x
  2. Step 2: Convert to fraction form
    31,821.99/43,914.59 = 19,892.35/x
  3. Step 3: Cross multiply
    31,821.99x = 43,914.59 × 19,892.35
  4. Step 4: Simplify right side
    31,821.99x = 873,564,394.39
  5. Step 5: Solve for x
    x = 873,564,394.39/31,821.99
  6. Step 6: Final answer
    x = 27,451.60

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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.