Home / 31,597.21-47,405.60-18,961.08

Finding the Fourth Proportional to 31,597.21, 47,405.60 and 18,961.08

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Solution

The fourth proportional to 31,597.21, 47,405.60 and 18,961.08 is: 28,447.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,597.21 : 47,405.60 = 18,961.08 : x
  2. Step 2: Convert to fraction form
    31,597.21/47,405.60 = 18,961.08/x
  3. Step 3: Cross multiply
    31,597.21x = 47,405.60 × 18,961.08
  4. Step 4: Simplify right side
    31,597.21x = 898,861,374.05
  5. Step 5: Solve for x
    x = 898,861,374.05/31,597.21
  6. Step 6: Final answer
    x = 28,447.49

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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.