Home / 30,832.12-42,548.25-16,685.20

Finding the Fourth Proportional to 30,832.12, 42,548.25 and 16,685.20

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Solution

The fourth proportional to 30,832.12, 42,548.25 and 16,685.20 is: 23,025.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,832.12 : 42,548.25 = 16,685.20 : x
  2. Step 2: Convert to fraction form
    30,832.12/42,548.25 = 16,685.20/x
  3. Step 3: Cross multiply
    30,832.12x = 42,548.25 × 16,685.20
  4. Step 4: Simplify right side
    30,832.12x = 709,926,060.90
  5. Step 5: Solve for x
    x = 709,926,060.90/30,832.12
  6. Step 6: Final answer
    x = 23,025.54

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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.