Home / 22,619.25-31,214.57-13,185.99

Finding the Fourth Proportional to 22,619.25, 31,214.57 and 13,185.99

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Solution

The fourth proportional to 22,619.25, 31,214.57 and 13,185.99 is: 18,196.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.25 : 31,214.57 = 13,185.99 : x
  2. Step 2: Convert to fraction form
    22,619.25/31,214.57 = 13,185.99/x
  3. Step 3: Cross multiply
    22,619.25x = 31,214.57 × 13,185.99
  4. Step 4: Simplify right side
    22,619.25x = 411,594,941.94
  5. Step 5: Solve for x
    x = 411,594,941.94/22,619.25
  6. Step 6: Final answer
    x = 18,196.67

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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.