Home / 31,821.04-43,914-19,238.56

Finding the Fourth Proportional to 31,821.04, 43,914 and 19,238.56

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Solution

The fourth proportional to 31,821.04, 43,914 and 19,238.56 is: 26,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,821.04 : 43,914 = 19,238.56 : x
  2. Step 2: Convert to fraction form
    31,821.04/43,914 = 19,238.56/x
  3. Step 3: Cross multiply
    31,821.04x = 43,914 × 19,238.56
  4. Step 4: Simplify right side
    31,821.04x = 844,842,123.84
  5. Step 5: Solve for x
    x = 844,842,123.84/31,821.04
  6. Step 6: Final answer
    x = 26,549.80

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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.