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Finding the Fourth Proportional to 31,744.04, 43,803 and 18,315.92

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Solution

The fourth proportional to 31,744.04, 43,803 and 18,315.92 is: 25,273.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,744.04 : 43,803 = 18,315.92 : x
  2. Step 2: Convert to fraction form
    31,744.04/43,803 = 18,315.92/x
  3. Step 3: Cross multiply
    31,744.04x = 43,803 × 18,315.92
  4. Step 4: Simplify right side
    31,744.04x = 802,292,243.76
  5. Step 5: Solve for x
    x = 802,292,243.76/31,744.04
  6. Step 6: Final answer
    x = 25,273.79

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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.