Home / 30,809.80-42,519.49-17,376.15

Finding the Fourth Proportional to 30,809.80, 42,519.49 and 17,376.15

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Solution

The fourth proportional to 30,809.80, 42,519.49 and 17,376.15 is: 23,980.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,809.80 : 42,519.49 = 17,376.15 : x
  2. Step 2: Convert to fraction form
    30,809.80/42,519.49 = 17,376.15/x
  3. Step 3: Cross multiply
    30,809.80x = 42,519.49 × 17,376.15
  4. Step 4: Simplify right side
    30,809.80x = 738,824,736.69
  5. Step 5: Solve for x
    x = 738,824,736.69/30,809.80
  6. Step 6: Final answer
    x = 23,980.19

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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.