Home / 31,441.37-43,376.51-20,108.25

Finding the Fourth Proportional to 31,441.37, 43,376.51 and 20,108.25

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Solution

The fourth proportional to 31,441.37, 43,376.51 and 20,108.25 is: 27,741.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,441.37 : 43,376.51 = 20,108.25 : x
  2. Step 2: Convert to fraction form
    31,441.37/43,376.51 = 20,108.25/x
  3. Step 3: Cross multiply
    31,441.37x = 43,376.51 × 20,108.25
  4. Step 4: Simplify right side
    31,441.37x = 872,225,757.48
  5. Step 5: Solve for x
    x = 872,225,757.48/31,441.37
  6. Step 6: Final answer
    x = 27,741.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.