Home / 30,659.57-42,311.16-18,562.27

Finding the Fourth Proportional to 30,659.57, 42,311.16 and 18,562.27

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Solution

The fourth proportional to 30,659.57, 42,311.16 and 18,562.27 is: 25,616.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659.57 : 42,311.16 = 18,562.27 : x
  2. Step 2: Convert to fraction form
    30,659.57/42,311.16 = 18,562.27/x
  3. Step 3: Cross multiply
    30,659.57x = 42,311.16 × 18,562.27
  4. Step 4: Simplify right side
    30,659.57x = 785,391,116.56
  5. Step 5: Solve for x
    x = 785,391,116.56/30,659.57
  6. Step 6: Final answer
    x = 25,616.51

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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.