Home / 30,667.60-42,325.77-17,239.96

Finding the Fourth Proportional to 30,667.60, 42,325.77 and 17,239.96

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Solution

The fourth proportional to 30,667.60, 42,325.77 and 17,239.96 is: 23,793.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,667.60 : 42,325.77 = 17,239.96 : x
  2. Step 2: Convert to fraction form
    30,667.60/42,325.77 = 17,239.96/x
  3. Step 3: Cross multiply
    30,667.60x = 42,325.77 × 17,239.96
  4. Step 4: Simplify right side
    30,667.60x = 729,694,581.77
  5. Step 5: Solve for x
    x = 729,694,581.77/30,667.60
  6. Step 6: Final answer
    x = 23,793.66

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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.