Home / 30,911.01-46,331.15-12,180.75

Finding the Fourth Proportional to 30,911.01, 46,331.15 and 12,180.75

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Solution

The fourth proportional to 30,911.01, 46,331.15 and 12,180.75 is: 18,257.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,911.01 : 46,331.15 = 12,180.75 : x
  2. Step 2: Convert to fraction form
    30,911.01/46,331.15 = 12,180.75/x
  3. Step 3: Cross multiply
    30,911.01x = 46,331.15 × 12,180.75
  4. Step 4: Simplify right side
    30,911.01x = 564,348,094.46
  5. Step 5: Solve for x
    x = 564,348,094.46/30,911.01
  6. Step 6: Final answer
    x = 18,257.19

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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.