Home / 30,751.20-42,439.23-17,325.09

Finding the Fourth Proportional to 30,751.20, 42,439.23 and 17,325.09

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Solution

The fourth proportional to 30,751.20, 42,439.23 and 17,325.09 is: 23,910.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,751.20 : 42,439.23 = 17,325.09 : x
  2. Step 2: Convert to fraction form
    30,751.20/42,439.23 = 17,325.09/x
  3. Step 3: Cross multiply
    30,751.20x = 42,439.23 × 17,325.09
  4. Step 4: Simplify right side
    30,751.20x = 735,263,479.28
  5. Step 5: Solve for x
    x = 735,263,479.28/30,751.20
  6. Step 6: Final answer
    x = 23,910.07

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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.