Home / 28,084.32-42,139.44-14,043.78

Finding the Fourth Proportional to 28,084.32, 42,139.44 and 14,043.78

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Solution

The fourth proportional to 28,084.32, 42,139.44 and 14,043.78 is: 21,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,084.32 : 42,139.44 = 14,043.78 : x
  2. Step 2: Convert to fraction form
    28,084.32/42,139.44 = 14,043.78/x
  3. Step 3: Cross multiply
    28,084.32x = 42,139.44 × 14,043.78
  4. Step 4: Simplify right side
    28,084.32x = 591,797,024.68
  5. Step 5: Solve for x
    x = 591,797,024.68/28,084.32
  6. Step 6: Final answer
    x = 21,072.15

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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.