Home / 28,637.80-42,973.44-11,996.42

Finding the Fourth Proportional to 28,637.80, 42,973.44 and 11,996.42

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Solution

The fourth proportional to 28,637.80, 42,973.44 and 11,996.42 is: 18,001.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,637.80 : 42,973.44 = 11,996.42 : x
  2. Step 2: Convert to fraction form
    28,637.80/42,973.44 = 11,996.42/x
  3. Step 3: Cross multiply
    28,637.80x = 42,973.44 × 11,996.42
  4. Step 4: Simplify right side
    28,637.80x = 515,527,435.08
  5. Step 5: Solve for x
    x = 515,527,435.08/28,637.80
  6. Step 6: Final answer
    x = 18,001.64

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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.