Home / 31,331.10-46,998.45-9,147.90

Finding the Fourth Proportional to 31,331.10, 46,998.45 and 9,147.90

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Solution

The fourth proportional to 31,331.10, 46,998.45 and 9,147.90 is: 13,722.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,331.10 : 46,998.45 = 9,147.90 : x
  2. Step 2: Convert to fraction form
    31,331.10/46,998.45 = 9,147.90/x
  3. Step 3: Cross multiply
    31,331.10x = 46,998.45 × 9,147.90
  4. Step 4: Simplify right side
    31,331.10x = 429,937,120.76
  5. Step 5: Solve for x
    x = 429,937,120.76/31,331.10
  6. Step 6: Final answer
    x = 13,722.38

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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.