Home / 31,539.45-43,522.47-18,101.25

Finding the Fourth Proportional to 31,539.45, 43,522.47 and 18,101.25

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Solution

The fourth proportional to 31,539.45, 43,522.47 and 18,101.25 is: 24,978.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.45 : 43,522.47 = 18,101.25 : x
  2. Step 2: Convert to fraction form
    31,539.45/43,522.47 = 18,101.25/x
  3. Step 3: Cross multiply
    31,539.45x = 43,522.47 × 18,101.25
  4. Step 4: Simplify right side
    31,539.45x = 787,811,110.09
  5. Step 5: Solve for x
    x = 787,811,110.09/31,539.45
  6. Step 6: Final answer
    x = 24,978.59

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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.