Home / 30,605.85-42,235.29-17,180.37

Finding the Fourth Proportional to 30,605.85, 42,235.29 and 17,180.37

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Solution

The fourth proportional to 30,605.85, 42,235.29 and 17,180.37 is: 23,708.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,605.85 : 42,235.29 = 17,180.37 : x
  2. Step 2: Convert to fraction form
    30,605.85/42,235.29 = 17,180.37/x
  3. Step 3: Cross multiply
    30,605.85x = 42,235.29 × 17,180.37
  4. Step 4: Simplify right side
    30,605.85x = 725,617,909.26
  5. Step 5: Solve for x
    x = 725,617,909.26/30,605.85
  6. Step 6: Final answer
    x = 23,708.47

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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.