Home / 30,732.87-42,412.16-17,304.61

Finding the Fourth Proportional to 30,732.87, 42,412.16 and 17,304.61

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Solution

The fourth proportional to 30,732.87, 42,412.16 and 17,304.61 is: 23,880.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,732.87 : 42,412.16 = 17,304.61 : x
  2. Step 2: Convert to fraction form
    30,732.87/42,412.16 = 17,304.61/x
  3. Step 3: Cross multiply
    30,732.87x = 42,412.16 × 17,304.61
  4. Step 4: Simplify right side
    30,732.87x = 733,925,888.06
  5. Step 5: Solve for x
    x = 733,925,888.06/30,732.87
  6. Step 6: Final answer
    x = 23,880.81

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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.