Home / 22,005.42-30,368.07-12,445.65

Finding the Fourth Proportional to 22,005.42, 30,368.07 and 12,445.65

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Solution

The fourth proportional to 22,005.42, 30,368.07 and 12,445.65 is: 17,175.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,005.42 : 30,368.07 = 12,445.65 : x
  2. Step 2: Convert to fraction form
    22,005.42/30,368.07 = 12,445.65/x
  3. Step 3: Cross multiply
    22,005.42x = 30,368.07 × 12,445.65
  4. Step 4: Simplify right side
    22,005.42x = 377,950,370.40
  5. Step 5: Solve for x
    x = 377,950,370.40/22,005.42
  6. Step 6: Final answer
    x = 17,175.33

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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.