Home / 30,973.38-42,743.46-16,826.32

Finding the Fourth Proportional to 30,973.38, 42,743.46 and 16,826.32

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Solution

The fourth proportional to 30,973.38, 42,743.46 and 16,826.32 is: 23,220.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,973.38 : 42,743.46 = 16,826.32 : x
  2. Step 2: Convert to fraction form
    30,973.38/42,743.46 = 16,826.32/x
  3. Step 3: Cross multiply
    30,973.38x = 42,743.46 × 16,826.32
  4. Step 4: Simplify right side
    30,973.38x = 719,215,135.87
  5. Step 5: Solve for x
    x = 719,215,135.87/30,973.38
  6. Step 6: Final answer
    x = 23,220.43

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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.