Home / 30,751.56-42,439.72-17,325.44

Finding the Fourth Proportional to 30,751.56, 42,439.72 and 17,325.44

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Solution

The fourth proportional to 30,751.56, 42,439.72 and 17,325.44 is: 23,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,751.56 : 42,439.72 = 17,325.44 : x
  2. Step 2: Convert to fraction form
    30,751.56/42,439.72 = 17,325.44/x
  3. Step 3: Cross multiply
    30,751.56x = 42,439.72 × 17,325.44
  4. Step 4: Simplify right side
    30,751.56x = 735,286,822.48
  5. Step 5: Solve for x
    x = 735,286,822.48/30,751.56
  6. Step 6: Final answer
    x = 23,910.55

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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.