Home / 31,541.84-43,528.04-18,112.90

Finding the Fourth Proportional to 31,541.84, 43,528.04 and 18,112.90

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Solution

The fourth proportional to 31,541.84, 43,528.04 and 18,112.90 is: 24,995.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,541.84 : 43,528.04 = 18,112.90 : x
  2. Step 2: Convert to fraction form
    31,541.84/43,528.04 = 18,112.90/x
  3. Step 3: Cross multiply
    31,541.84x = 43,528.04 × 18,112.90
  4. Step 4: Simplify right side
    31,541.84x = 788,419,035.72
  5. Step 5: Solve for x
    x = 788,419,035.72/31,541.84
  6. Step 6: Final answer
    x = 24,995.97

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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.