Home / 28,753.90-43,141.56-12,954.20

Finding the Fourth Proportional to 28,753.90, 43,141.56 and 12,954.20

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Solution

The fourth proportional to 28,753.90, 43,141.56 and 12,954.20 is: 19,436.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,753.90 : 43,141.56 = 12,954.20 : x
  2. Step 2: Convert to fraction form
    28,753.90/43,141.56 = 12,954.20/x
  3. Step 3: Cross multiply
    28,753.90x = 43,141.56 × 12,954.20
  4. Step 4: Simplify right side
    28,753.90x = 558,864,205.13
  5. Step 5: Solve for x
    x = 558,864,205.13/28,753.90
  6. Step 6: Final answer
    x = 19,436.12

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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.