Home / 30,535.74-42,138.90-17,107.56

Finding the Fourth Proportional to 30,535.74, 42,138.90 and 17,107.56

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Solution

The fourth proportional to 30,535.74, 42,138.90 and 17,107.56 is: 23,608.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,535.74 : 42,138.90 = 17,107.56 : x
  2. Step 2: Convert to fraction form
    30,535.74/42,138.90 = 17,107.56/x
  3. Step 3: Cross multiply
    30,535.74x = 42,138.90 × 17,107.56
  4. Step 4: Simplify right side
    30,535.74x = 720,893,760.08
  5. Step 5: Solve for x
    x = 720,893,760.08/30,535.74
  6. Step 6: Final answer
    x = 23,608.20

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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.