Home / 30,605.36-42,235.80-17,179.52

Finding the Fourth Proportional to 30,605.36, 42,235.80 and 17,179.52

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Solution

The fourth proportional to 30,605.36, 42,235.80 and 17,179.52 is: 23,707.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.36 : 42,235.80 = 17,179.52 : x
  2. Step 2: Convert to fraction form
    30,605.36/42,235.80 = 17,179.52/x
  3. Step 3: Cross multiply
    30,605.36x = 42,235.80 × 17,179.52
  4. Step 4: Simplify right side
    30,605.36x = 725,590,770.82
  5. Step 5: Solve for x
    x = 725,590,770.82/30,605.36
  6. Step 6: Final answer
    x = 23,707.96

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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.