Home / 19,582.72-29,391.28-13,431.04

Finding the Fourth Proportional to 19,582.72, 29,391.28 and 13,431.04

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Solution

The fourth proportional to 19,582.72, 29,391.28 and 13,431.04 is: 20,158.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,582.72 : 29,391.28 = 13,431.04 : x
  2. Step 2: Convert to fraction form
    19,582.72/29,391.28 = 13,431.04/x
  3. Step 3: Cross multiply
    19,582.72x = 29,391.28 × 13,431.04
  4. Step 4: Simplify right side
    19,582.72x = 394,755,457.33
  5. Step 5: Solve for x
    x = 394,755,457.33/19,582.72
  6. Step 6: Final answer
    x = 20,158.36

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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.