Home / 31,027.22-42,818-16,880.06

Finding the Fourth Proportional to 31,027.22, 42,818 and 16,880.06

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Solution

The fourth proportional to 31,027.22, 42,818 and 16,880.06 is: 23,294.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,027.22 : 42,818 = 16,880.06 : x
  2. Step 2: Convert to fraction form
    31,027.22/42,818 = 16,880.06/x
  3. Step 3: Cross multiply
    31,027.22x = 42,818 × 16,880.06
  4. Step 4: Simplify right side
    31,027.22x = 722,770,409.08
  5. Step 5: Solve for x
    x = 722,770,409.08/31,027.22
  6. Step 6: Final answer
    x = 23,294.72

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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.