Home / 31,145.23-46,720.55-8,960.41

Finding the Fourth Proportional to 31,145.23, 46,720.55 and 8,960.41

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Solution

The fourth proportional to 31,145.23, 46,720.55 and 8,960.41 is: 13,441.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,145.23 : 46,720.55 = 8,960.41 : x
  2. Step 2: Convert to fraction form
    31,145.23/46,720.55 = 8,960.41/x
  3. Step 3: Cross multiply
    31,145.23x = 46,720.55 × 8,960.41
  4. Step 4: Simplify right side
    31,145.23x = 418,635,283.43
  5. Step 5: Solve for x
    x = 418,635,283.43/31,145.23
  6. Step 6: Final answer
    x = 13,441.39

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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.