Home / 20,692.17-28,554.42-11,260.53

Finding the Fourth Proportional to 20,692.17, 28,554.42 and 11,260.53

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Solution

The fourth proportional to 20,692.17, 28,554.42 and 11,260.53 is: 15,539.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,692.17 : 28,554.42 = 11,260.53 : x
  2. Step 2: Convert to fraction form
    20,692.17/28,554.42 = 11,260.53/x
  3. Step 3: Cross multiply
    20,692.17x = 28,554.42 × 11,260.53
  4. Step 4: Simplify right side
    20,692.17x = 321,537,903.04
  5. Step 5: Solve for x
    x = 321,537,903.04/20,692.17
  6. Step 6: Final answer
    x = 15,539.11

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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.