Home / 31,528.52-43,507.65-18,099.43

Finding the Fourth Proportional to 31,528.52, 43,507.65 and 18,099.43

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Solution

The fourth proportional to 31,528.52, 43,507.65 and 18,099.43 is: 24,976.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,528.52 : 43,507.65 = 18,099.43 : x
  2. Step 2: Convert to fraction form
    31,528.52/43,507.65 = 18,099.43/x
  3. Step 3: Cross multiply
    31,528.52x = 43,507.65 × 18,099.43
  4. Step 4: Simplify right side
    31,528.52x = 787,463,556.87
  5. Step 5: Solve for x
    x = 787,463,556.87/31,528.52
  6. Step 6: Final answer
    x = 24,976.23

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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.