Home / 30,996.87-42,774.78-17,569.36

Finding the Fourth Proportional to 30,996.87, 42,774.78 and 17,569.36

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Solution

The fourth proportional to 30,996.87, 42,774.78 and 17,569.36 is: 24,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,996.87 : 42,774.78 = 17,569.36 : x
  2. Step 2: Convert to fraction form
    30,996.87/42,774.78 = 17,569.36/x
  3. Step 3: Cross multiply
    30,996.87x = 42,774.78 × 17,569.36
  4. Step 4: Simplify right side
    30,996.87x = 751,525,508.74
  5. Step 5: Solve for x
    x = 751,525,508.74/30,996.87
  6. Step 6: Final answer
    x = 24,245.21

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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.