Home / 30,570.57-42,194.39-18,002.61

Finding the Fourth Proportional to 30,570.57, 42,194.39 and 18,002.61

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Solution

The fourth proportional to 30,570.57, 42,194.39 and 18,002.61 is: 24,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,570.57 : 42,194.39 = 18,002.61 : x
  2. Step 2: Convert to fraction form
    30,570.57/42,194.39 = 18,002.61/x
  3. Step 3: Cross multiply
    30,570.57x = 42,194.39 × 18,002.61
  4. Step 4: Simplify right side
    30,570.57x = 759,609,057.34
  5. Step 5: Solve for x
    x = 759,609,057.34/30,570.57
  6. Step 6: Final answer
    x = 24,847.72

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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.