Home / 30,744.39-42,429.32-17,134.54

Finding the Fourth Proportional to 30,744.39, 42,429.32 and 17,134.54

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Solution

The fourth proportional to 30,744.39, 42,429.32 and 17,134.54 is: 23,646.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,744.39 : 42,429.32 = 17,134.54 : x
  2. Step 2: Convert to fraction form
    30,744.39/42,429.32 = 17,134.54/x
  3. Step 3: Cross multiply
    30,744.39x = 42,429.32 × 17,134.54
  4. Step 4: Simplify right side
    30,744.39x = 727,006,880.71
  5. Step 5: Solve for x
    x = 727,006,880.71/30,744.39
  6. Step 6: Final answer
    x = 23,646.81

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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.