Home / 30,733.90-42,412.31-17,305.11

Finding the Fourth Proportional to 30,733.90, 42,412.31 and 17,305.11

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Solution

The fourth proportional to 30,733.90, 42,412.31 and 17,305.11 is: 23,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,733.90 : 42,412.31 = 17,305.11 : x
  2. Step 2: Convert to fraction form
    30,733.90/42,412.31 = 17,305.11/x
  3. Step 3: Cross multiply
    30,733.90x = 42,412.31 × 17,305.11
  4. Step 4: Simplify right side
    30,733.90x = 733,949,668.27
  5. Step 5: Solve for x
    x = 733,949,668.27/30,733.90
  6. Step 6: Final answer
    x = 23,880.79

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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.