Home / 30,690.04-42,351.90-17,261.24

Finding the Fourth Proportional to 30,690.04, 42,351.90 and 17,261.24

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Solution

The fourth proportional to 30,690.04, 42,351.90 and 17,261.24 is: 23,820.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,690.04 : 42,351.90 = 17,261.24 : x
  2. Step 2: Convert to fraction form
    30,690.04/42,351.90 = 17,261.24/x
  3. Step 3: Cross multiply
    30,690.04x = 42,351.90 × 17,261.24
  4. Step 4: Simplify right side
    30,690.04x = 731,046,310.36
  5. Step 5: Solve for x
    x = 731,046,310.36/30,690.04
  6. Step 6: Final answer
    x = 23,820.31

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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.