Home / 19,703.40-29,590.32-18,910.62

Finding the Fourth Proportional to 19,703.40, 29,590.32 and 18,910.62

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Solution

The fourth proportional to 19,703.40, 29,590.32 and 18,910.62 is: 28,399.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,703.40 : 29,590.32 = 18,910.62 : x
  2. Step 2: Convert to fraction form
    19,703.40/29,590.32 = 18,910.62/x
  3. Step 3: Cross multiply
    19,703.40x = 29,590.32 × 18,910.62
  4. Step 4: Simplify right side
    19,703.40x = 559,571,297.20
  5. Step 5: Solve for x
    x = 559,571,297.20/19,703.40
  6. Step 6: Final answer
    x = 28,399.73

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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.