Home / 28,614.11-42,912.38-19,786.16

Finding the Fourth Proportional to 28,614.11, 42,912.38 and 19,786.16

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Solution

The fourth proportional to 28,614.11, 42,912.38 and 19,786.16 is: 29,673.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.11 : 42,912.38 = 19,786.16 : x
  2. Step 2: Convert to fraction form
    28,614.11/42,912.38 = 19,786.16/x
  3. Step 3: Cross multiply
    28,614.11x = 42,912.38 × 19,786.16
  4. Step 4: Simplify right side
    28,614.11x = 849,071,373.41
  5. Step 5: Solve for x
    x = 849,071,373.41/28,614.11
  6. Step 6: Final answer
    x = 29,673.17

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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.