Home / 20,701.84-28,567.68-11,270.41

Finding the Fourth Proportional to 20,701.84, 28,567.68 and 11,270.41

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Solution

The fourth proportional to 20,701.84, 28,567.68 and 11,270.41 is: 15,552.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,701.84 : 28,567.68 = 11,270.41 : x
  2. Step 2: Convert to fraction form
    20,701.84/28,567.68 = 11,270.41/x
  3. Step 3: Cross multiply
    20,701.84x = 28,567.68 × 11,270.41
  4. Step 4: Simplify right side
    20,701.84x = 321,969,466.35
  5. Step 5: Solve for x
    x = 321,969,466.35/20,701.84
  6. Step 6: Final answer
    x = 15,552.70

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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.