Home / 35,996.40-54,001.80-12,639.24

Finding the Fourth Proportional to 35,996.40, 54,001.80 and 12,639.24

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Solution

The fourth proportional to 35,996.40, 54,001.80 and 12,639.24 is: 18,961.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,996.40 : 54,001.80 = 12,639.24 : x
  2. Step 2: Convert to fraction form
    35,996.40/54,001.80 = 12,639.24/x
  3. Step 3: Cross multiply
    35,996.40x = 54,001.80 × 12,639.24
  4. Step 4: Simplify right side
    35,996.40x = 682,541,710.63
  5. Step 5: Solve for x
    x = 682,541,710.63/35,996.40
  6. Step 6: Final answer
    x = 18,961.39

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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.