Home / 30,911.10-46,366.80-13,137.18

Finding the Fourth Proportional to 30,911.10, 46,366.80 and 13,137.18

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Solution

The fourth proportional to 30,911.10, 46,366.80 and 13,137.18 is: 19,705.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.10 : 46,366.80 = 13,137.18 : x
  2. Step 2: Convert to fraction form
    30,911.10/46,366.80 = 13,137.18/x
  3. Step 3: Cross multiply
    30,911.10x = 46,366.80 × 13,137.18
  4. Step 4: Simplify right side
    30,911.10x = 609,128,997.62
  5. Step 5: Solve for x
    x = 609,128,997.62/30,911.10
  6. Step 6: Final answer
    x = 19,705.83

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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.