Home / 30,735.12-42,412.88-17,305.92

Finding the Fourth Proportional to 30,735.12, 42,412.88 and 17,305.92

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Solution

The fourth proportional to 30,735.12, 42,412.88 and 17,305.92 is: 23,881.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,735.12 : 42,412.88 = 17,305.92 : x
  2. Step 2: Convert to fraction form
    30,735.12/42,412.88 = 17,305.92/x
  3. Step 3: Cross multiply
    30,735.12x = 42,412.88 × 17,305.92
  4. Step 4: Simplify right side
    30,735.12x = 733,993,908.25
  5. Step 5: Solve for x
    x = 733,993,908.25/30,735.12
  6. Step 6: Final answer
    x = 23,881.28

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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.