Home / 30,932.96-42,685.13-18,186.66

Finding the Fourth Proportional to 30,932.96, 42,685.13 and 18,186.66

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Solution

The fourth proportional to 30,932.96, 42,685.13 and 18,186.66 is: 25,096.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,932.96 : 42,685.13 = 18,186.66 : x
  2. Step 2: Convert to fraction form
    30,932.96/42,685.13 = 18,186.66/x
  3. Step 3: Cross multiply
    30,932.96x = 42,685.13 × 18,186.66
  4. Step 4: Simplify right side
    30,932.96x = 776,299,855.43
  5. Step 5: Solve for x
    x = 776,299,855.43/30,932.96
  6. Step 6: Final answer
    x = 25,096.21

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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.