Home / 30,310.87-41,825.31-17,389.47

Finding the Fourth Proportional to 30,310.87, 41,825.31 and 17,389.47

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Solution

The fourth proportional to 30,310.87, 41,825.31 and 17,389.47 is: 23,995.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,310.87 : 41,825.31 = 17,389.47 : x
  2. Step 2: Convert to fraction form
    30,310.87/41,825.31 = 17,389.47/x
  3. Step 3: Cross multiply
    30,310.87x = 41,825.31 × 17,389.47
  4. Step 4: Simplify right side
    30,310.87x = 727,319,973.49
  5. Step 5: Solve for x
    x = 727,319,973.49/30,310.87
  6. Step 6: Final answer
    x = 23,995.35

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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.