Home / 30,560.55-42,173.50-17,131.80

Finding the Fourth Proportional to 30,560.55, 42,173.50 and 17,131.80

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Solution

The fourth proportional to 30,560.55, 42,173.50 and 17,131.80 is: 23,641.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,560.55 : 42,173.50 = 17,131.80 : x
  2. Step 2: Convert to fraction form
    30,560.55/42,173.50 = 17,131.80/x
  3. Step 3: Cross multiply
    30,560.55x = 42,173.50 × 17,131.80
  4. Step 4: Simplify right side
    30,560.55x = 722,507,967.30
  5. Step 5: Solve for x
    x = 722,507,967.30/30,560.55
  6. Step 6: Final answer
    x = 23,641.85

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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.