Home / 30,942.94-42,700.80-17,516.74

Finding the Fourth Proportional to 30,942.94, 42,700.80 and 17,516.74

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Solution

The fourth proportional to 30,942.94, 42,700.80 and 17,516.74 is: 24,172.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,942.94 : 42,700.80 = 17,516.74 : x
  2. Step 2: Convert to fraction form
    30,942.94/42,700.80 = 17,516.74/x
  3. Step 3: Cross multiply
    30,942.94x = 42,700.80 × 17,516.74
  4. Step 4: Simplify right side
    30,942.94x = 747,978,811.39
  5. Step 5: Solve for x
    x = 747,978,811.39/30,942.94
  6. Step 6: Final answer
    x = 24,172.84

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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.