Home / 31,257.86-46,872.60-13,480.11

Finding the Fourth Proportional to 31,257.86, 46,872.60 and 13,480.11

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Solution

The fourth proportional to 31,257.86, 46,872.60 and 13,480.11 is: 20,214.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,257.86 : 46,872.60 = 13,480.11 : x
  2. Step 2: Convert to fraction form
    31,257.86/46,872.60 = 13,480.11/x
  3. Step 3: Cross multiply
    31,257.86x = 46,872.60 × 13,480.11
  4. Step 4: Simplify right side
    31,257.86x = 631,847,803.99
  5. Step 5: Solve for x
    x = 631,847,803.99/31,257.86
  6. Step 6: Final answer
    x = 20,214.05

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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.