Home / 20,977.14-31,480.26-13,563.22

Finding the Fourth Proportional to 20,977.14, 31,480.26 and 13,563.22

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Solution

The fourth proportional to 20,977.14, 31,480.26 and 13,563.22 is: 20,354.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,977.14 : 31,480.26 = 13,563.22 : x
  2. Step 2: Convert to fraction form
    20,977.14/31,480.26 = 13,563.22/x
  3. Step 3: Cross multiply
    20,977.14x = 31,480.26 × 13,563.22
  4. Step 4: Simplify right side
    20,977.14x = 426,973,692.04
  5. Step 5: Solve for x
    x = 426,973,692.04/20,977.14
  6. Step 6: Final answer
    x = 20,354.24

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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.