Home / 30,555.06-42,165.86-17,126.31

Finding the Fourth Proportional to 30,555.06, 42,165.86 and 17,126.31

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Solution

The fourth proportional to 30,555.06, 42,165.86 and 17,126.31 is: 23,634.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,555.06 : 42,165.86 = 17,126.31 : x
  2. Step 2: Convert to fraction form
    30,555.06/42,165.86 = 17,126.31/x
  3. Step 3: Cross multiply
    30,555.06x = 42,165.86 × 17,126.31
  4. Step 4: Simplify right side
    30,555.06x = 722,145,504.15
  5. Step 5: Solve for x
    x = 722,145,504.15/30,555.06
  6. Step 6: Final answer
    x = 23,634.24

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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.