Home / 30,832.75-42,549.20-16,685.70

Finding the Fourth Proportional to 30,832.75, 42,549.20 and 16,685.70

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Solution

The fourth proportional to 30,832.75, 42,549.20 and 16,685.70 is: 23,026.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,832.75 : 42,549.20 = 16,685.70 : x
  2. Step 2: Convert to fraction form
    30,832.75/42,549.20 = 16,685.70/x
  3. Step 3: Cross multiply
    30,832.75x = 42,549.20 × 16,685.70
  4. Step 4: Simplify right side
    30,832.75x = 709,963,186.44
  5. Step 5: Solve for x
    x = 709,963,186.44/30,832.75
  6. Step 6: Final answer
    x = 23,026.27

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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.