Home / 30,832.21-42,548.45-16,685.05

Finding the Fourth Proportional to 30,832.21, 42,548.45 and 16,685.05

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Solution

The fourth proportional to 30,832.21, 42,548.45 and 16,685.05 is: 23,025.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,832.21 : 42,548.45 = 16,685.05 : x
  2. Step 2: Convert to fraction form
    30,832.21/42,548.45 = 16,685.05/x
  3. Step 3: Cross multiply
    30,832.21x = 42,548.45 × 16,685.05
  4. Step 4: Simplify right side
    30,832.21x = 709,923,038.62
  5. Step 5: Solve for x
    x = 709,923,038.62/30,832.21
  6. Step 6: Final answer
    x = 23,025.37

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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.