Home / 19,422.90-29,109.99-8,316.57

Finding the Fourth Proportional to 19,422.90, 29,109.99 and 8,316.57

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Solution

The fourth proportional to 19,422.90, 29,109.99 and 8,316.57 is: 12,464.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,422.90 : 29,109.99 = 8,316.57 : x
  2. Step 2: Convert to fraction form
    19,422.90/29,109.99 = 8,316.57/x
  3. Step 3: Cross multiply
    19,422.90x = 29,109.99 × 8,316.57
  4. Step 4: Simplify right side
    19,422.90x = 242,095,269.53
  5. Step 5: Solve for x
    x = 242,095,269.53/19,422.90
  6. Step 6: Final answer
    x = 12,464.42

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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.