Home / 31,063.64-42,874.98-18,968.24

Finding the Fourth Proportional to 31,063.64, 42,874.98 and 18,968.24

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Solution

The fourth proportional to 31,063.64, 42,874.98 and 18,968.24 is: 26,180.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,063.64 : 42,874.98 = 18,968.24 : x
  2. Step 2: Convert to fraction form
    31,063.64/42,874.98 = 18,968.24/x
  3. Step 3: Cross multiply
    31,063.64x = 42,874.98 × 18,968.24
  4. Step 4: Simplify right side
    31,063.64x = 813,262,910.64
  5. Step 5: Solve for x
    x = 813,262,910.64/31,063.64
  6. Step 6: Final answer
    x = 26,180.54

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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.