Home / 19,390.96-29,025.66-13,351.80

Finding the Fourth Proportional to 19,390.96, 29,025.66 and 13,351.80

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Solution

The fourth proportional to 19,390.96, 29,025.66 and 13,351.80 is: 19,985.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.96 : 29,025.66 = 13,351.80 : x
  2. Step 2: Convert to fraction form
    19,390.96/29,025.66 = 13,351.80/x
  3. Step 3: Cross multiply
    19,390.96x = 29,025.66 × 13,351.80
  4. Step 4: Simplify right side
    19,390.96x = 387,544,807.19
  5. Step 5: Solve for x
    x = 387,544,807.19/19,390.96
  6. Step 6: Final answer
    x = 19,985.85

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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.