Home / 32,991.12-45,548.81-21,680.69

Finding the Fourth Proportional to 32,991.12, 45,548.81 and 21,680.69

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Solution

The fourth proportional to 32,991.12, 45,548.81 and 21,680.69 is: 29,933.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,991.12 : 45,548.81 = 21,680.69 : x
  2. Step 2: Convert to fraction form
    32,991.12/45,548.81 = 21,680.69/x
  3. Step 3: Cross multiply
    32,991.12x = 45,548.81 × 21,680.69
  4. Step 4: Simplify right side
    32,991.12x = 987,529,293.33
  5. Step 5: Solve for x
    x = 987,529,293.33/32,991.12
  6. Step 6: Final answer
    x = 29,933.18

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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.