Home / 30,682.94-42,342.18-17,253.90

Finding the Fourth Proportional to 30,682.94, 42,342.18 and 17,253.90

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Solution

The fourth proportional to 30,682.94, 42,342.18 and 17,253.90 is: 23,810.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,682.94 : 42,342.18 = 17,253.90 : x
  2. Step 2: Convert to fraction form
    30,682.94/42,342.18 = 17,253.90/x
  3. Step 3: Cross multiply
    30,682.94x = 42,342.18 × 17,253.90
  4. Step 4: Simplify right side
    30,682.94x = 730,567,739.50
  5. Step 5: Solve for x
    x = 730,567,739.50/30,682.94
  6. Step 6: Final answer
    x = 23,810.23

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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.