Home / 31,539.39-43,522.37-18,101.19

Finding the Fourth Proportional to 31,539.39, 43,522.37 and 18,101.19

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Solution

The fourth proportional to 31,539.39, 43,522.37 and 18,101.19 is: 24,978.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,539.39 : 43,522.37 = 18,101.19 : x
  2. Step 2: Convert to fraction form
    31,539.39/43,522.37 = 18,101.19/x
  3. Step 3: Cross multiply
    31,539.39x = 43,522.37 × 18,101.19
  4. Step 4: Simplify right side
    31,539.39x = 787,806,471.01
  5. Step 5: Solve for x
    x = 787,806,471.01/31,539.39
  6. Step 6: Final answer
    x = 24,978.49

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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.