Home / 30,723.09-42,397.39-17,294.30

Finding the Fourth Proportional to 30,723.09, 42,397.39 and 17,294.30

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Solution

The fourth proportional to 30,723.09, 42,397.39 and 17,294.30 is: 23,865.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,723.09 : 42,397.39 = 17,294.30 : x
  2. Step 2: Convert to fraction form
    30,723.09/42,397.39 = 17,294.30/x
  3. Step 3: Cross multiply
    30,723.09x = 42,397.39 × 17,294.30
  4. Step 4: Simplify right side
    30,723.09x = 733,233,032.65
  5. Step 5: Solve for x
    x = 733,233,032.65/30,723.09
  6. Step 6: Final answer
    x = 23,865.87

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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.