Home / 30,860.48-46,364.62-19,788.86

Finding the Fourth Proportional to 30,860.48, 46,364.62 and 19,788.86

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Solution

The fourth proportional to 30,860.48, 46,364.62 and 19,788.86 is: 29,730.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,860.48 : 46,364.62 = 19,788.86 : x
  2. Step 2: Convert to fraction form
    30,860.48/46,364.62 = 19,788.86/x
  3. Step 3: Cross multiply
    30,860.48x = 46,364.62 × 19,788.86
  4. Step 4: Simplify right side
    30,860.48x = 917,502,974.13
  5. Step 5: Solve for x
    x = 917,502,974.13/30,860.48
  6. Step 6: Final answer
    x = 29,730.68

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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.