Home / 20,668.84-28,511.94-14,370.28

Finding the Fourth Proportional to 20,668.84, 28,511.94 and 14,370.28

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Solution

The fourth proportional to 20,668.84, 28,511.94 and 14,370.28 is: 19,823.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,668.84 : 28,511.94 = 14,370.28 : x
  2. Step 2: Convert to fraction form
    20,668.84/28,511.94 = 14,370.28/x
  3. Step 3: Cross multiply
    20,668.84x = 28,511.94 × 14,370.28
  4. Step 4: Simplify right side
    20,668.84x = 409,724,561.14
  5. Step 5: Solve for x
    x = 409,724,561.14/20,668.84
  6. Step 6: Final answer
    x = 19,823.30

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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.