Home / 31,728.04-43,783.94-17,387.39

Finding the Fourth Proportional to 31,728.04, 43,783.94 and 17,387.39

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Solution

The fourth proportional to 31,728.04, 43,783.94 and 17,387.39 is: 23,994.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.04 : 43,783.94 = 17,387.39 : x
  2. Step 2: Convert to fraction form
    31,728.04/43,783.94 = 17,387.39/x
  3. Step 3: Cross multiply
    31,728.04x = 43,783.94 × 17,387.39
  4. Step 4: Simplify right side
    31,728.04x = 761,288,593.44
  5. Step 5: Solve for x
    x = 761,288,593.44/31,728.04
  6. Step 6: Final answer
    x = 23,994.19

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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.