Home / 20,654.69-28,503.37-11,702.17

Finding the Fourth Proportional to 20,654.69, 28,503.37 and 11,702.17

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Solution

The fourth proportional to 20,654.69, 28,503.37 and 11,702.17 is: 16,148.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,654.69 : 28,503.37 = 11,702.17 : x
  2. Step 2: Convert to fraction form
    20,654.69/28,503.37 = 11,702.17/x
  3. Step 3: Cross multiply
    20,654.69x = 28,503.37 × 11,702.17
  4. Step 4: Simplify right side
    20,654.69x = 333,551,281.31
  5. Step 5: Solve for x
    x = 333,551,281.31/20,654.69
  6. Step 6: Final answer
    x = 16,148.94

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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.