Home / 20,484.64-30,677.70-11,692.90

Finding the Fourth Proportional to 20,484.64, 30,677.70 and 11,692.90

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Solution

The fourth proportional to 20,484.64, 30,677.70 and 11,692.90 is: 17,511.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,484.64 : 30,677.70 = 11,692.90 : x
  2. Step 2: Convert to fraction form
    20,484.64/30,677.70 = 11,692.90/x
  3. Step 3: Cross multiply
    20,484.64x = 30,677.70 × 11,692.90
  4. Step 4: Simplify right side
    20,484.64x = 358,711,278.33
  5. Step 5: Solve for x
    x = 358,711,278.33/20,484.64
  6. Step 6: Final answer
    x = 17,511.23

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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.