Home / 31,145.92-46,720.32-11,415.04

Finding the Fourth Proportional to 31,145.92, 46,720.32 and 11,415.04

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Solution

The fourth proportional to 31,145.92, 46,720.32 and 11,415.04 is: 17,123.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,145.92 : 46,720.32 = 11,415.04 : x
  2. Step 2: Convert to fraction form
    31,145.92/46,720.32 = 11,415.04/x
  3. Step 3: Cross multiply
    31,145.92x = 46,720.32 × 11,415.04
  4. Step 4: Simplify right side
    31,145.92x = 533,314,321.61
  5. Step 5: Solve for x
    x = 533,314,321.61/31,145.92
  6. Step 6: Final answer
    x = 17,123.09

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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.