Home / 38,178.36-57,282.12-21,557.16

Finding the Fourth Proportional to 38,178.36, 57,282.12 and 21,557.16

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Solution

The fourth proportional to 38,178.36, 57,282.12 and 21,557.16 is: 32,343.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,178.36 : 57,282.12 = 21,557.16 : x
  2. Step 2: Convert to fraction form
    38,178.36/57,282.12 = 21,557.16/x
  3. Step 3: Cross multiply
    38,178.36x = 57,282.12 × 21,557.16
  4. Step 4: Simplify right side
    38,178.36x = 1,234,839,825.98
  5. Step 5: Solve for x
    x = 1,234,839,825.98/38,178.36
  6. Step 6: Final answer
    x = 32,343.97

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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.