Home / 30,699.13-42,361.37-17,270.11

Finding the Fourth Proportional to 30,699.13, 42,361.37 and 17,270.11

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Solution

The fourth proportional to 30,699.13, 42,361.37 and 17,270.11 is: 23,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,699.13 : 42,361.37 = 17,270.11 : x
  2. Step 2: Convert to fraction form
    30,699.13/42,361.37 = 17,270.11/x
  3. Step 3: Cross multiply
    30,699.13x = 42,361.37 × 17,270.11
  4. Step 4: Simplify right side
    30,699.13x = 731,585,519.65
  5. Step 5: Solve for x
    x = 731,585,519.65/30,699.13
  6. Step 6: Final answer
    x = 23,830.82

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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.