Home / 31,311.54-43,209.95-16,971.35

Finding the Fourth Proportional to 31,311.54, 43,209.95 and 16,971.35

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Solution

The fourth proportional to 31,311.54, 43,209.95 and 16,971.35 is: 23,420.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,311.54 : 43,209.95 = 16,971.35 : x
  2. Step 2: Convert to fraction form
    31,311.54/43,209.95 = 16,971.35/x
  3. Step 3: Cross multiply
    31,311.54x = 43,209.95 × 16,971.35
  4. Step 4: Simplify right side
    31,311.54x = 733,330,884.03
  5. Step 5: Solve for x
    x = 733,330,884.03/31,311.54
  6. Step 6: Final answer
    x = 23,420.47

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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.