Home / 30,311.57-41,856.39-19,000.49

Finding the Fourth Proportional to 30,311.57, 41,856.39 and 19,000.49

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Solution

The fourth proportional to 30,311.57, 41,856.39 and 19,000.49 is: 26,237.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,311.57 : 41,856.39 = 19,000.49 : x
  2. Step 2: Convert to fraction form
    30,311.57/41,856.39 = 19,000.49/x
  3. Step 3: Cross multiply
    30,311.57x = 41,856.39 × 19,000.49
  4. Step 4: Simplify right side
    30,311.57x = 795,291,710.35
  5. Step 5: Solve for x
    x = 795,291,710.35/30,311.57
  6. Step 6: Final answer
    x = 26,237.24

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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.