Home / 30,355.57-45,502.17-11,630.53

Finding the Fourth Proportional to 30,355.57, 45,502.17 and 11,630.53

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Solution

The fourth proportional to 30,355.57, 45,502.17 and 11,630.53 is: 17,433.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,355.57 : 45,502.17 = 11,630.53 : x
  2. Step 2: Convert to fraction form
    30,355.57/45,502.17 = 11,630.53/x
  3. Step 3: Cross multiply
    30,355.57x = 45,502.17 × 11,630.53
  4. Step 4: Simplify right side
    30,355.57x = 529,214,353.25
  5. Step 5: Solve for x
    x = 529,214,353.25/30,355.57
  6. Step 6: Final answer
    x = 17,433.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.